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Western Front (World War I)

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Western Front
Part of the European theatre of World War I
Western Front (World War I) 2.jpg
Clockwise from top left:
Date2 August 191411 November 1918
Location
Result

Allied Powers victory

Belligerents
 France
 Austria-Hungary
Commanders and leaders
Strength
15,900,000
13,250,000[1]
Casualties and losses
  • Military casualties:
7,500,000
  • 4,808,000
  • 2,264,200
  • 286,330
  • 93,100
  • 22,120
  • 15,000
  • 4,542[b]
  • 19

  • Civilian dead:
  • 534,500
  • Military casualties:
5,500,000
  • 5,490,300
  • 19,295[8]

  • Civilian dead:
  • 424,000[c]

The Western Front was one of the main theatres of war during the First World War. Following the outbreak of war in August 1914, the German Army opened the Western Front by invading Luxembourg and Belgium, then gaining military control of important industrial regions in France. The German advance was halted with the Battle of the Marne. Following the Race to the Sea, both sides dug in along a meandering line of fortified trenches, stretching from the North Sea to the Swiss frontier with France, which changed little except during early 1917 and in 1918.

Between 1915 and 1917 there were several offensives along this front. The attacks employed massive artillery bombardments and massed infantry advances. Entrenchments, machine gun emplacements, barbed wire and artillery repeatedly inflicted severe casualties during attacks and counter-attacks and no significant advances were made. Among the most costly of these offensives were the Battle of Verdun, in 1916, with a combined 700,000 casualties, the Battle of the Somme, also in 1916, with more than a million casualties, and the Battle of Passchendaele, in 1917, with 487,000 casualties.[10][11]

To break the deadlock of the trench warfare on the Western Front, both sides tried new military technology, including poison gas, aircraft, and tanks. The adoption of better tactics and the cumulative weakening of the armies in the west led to the return of mobility in 1918. The German spring offensive of 1918 was made possible by the Treaty of Brest-Litovsk that ended the war of the Central Powers against Russia and Romania on the Eastern Front. Using short, intense "hurricane" bombardments and infiltration tactics, the German armies moved nearly 100 kilometres (60 miles) to the west, the deepest advance by either side since 1914, but the result was indecisive.

The unstoppable advance of the Allied armies during the Hundred Days Offensive of 1918 caused a sudden collapse of the German armies and persuaded the German commanders that defeat was inevitable. The German government surrendered in the Armistice of 11 November 1918, and the terms of peace were settled by the Treaty of Versailles in 1919.

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Belgium

Belgium

Belgium, officially the Kingdom of Belgium, is a country in Northwestern Europe. The country is bordered by the Netherlands to the north, Germany to the east, Luxembourg to the southeast, France to the southwest, and the North Sea to the northwest. It covers an area of 30,528 km2 (11,787 sq mi) and has a population of more than 11.5 million, making it the 22nd most densely populated country in the world and the 6th most densely populated country in Europe, with a density of 376/km2 (970/sq mi). Belgium is part of an area known as the Low Countries, historically a somewhat larger region than the Benelux group of states, as it also included parts of northern France. The capital and largest city is Brussels; other major cities are Antwerp, Ghent, Charleroi, Liège, Bruges, Namur, and Leuven.

First Battle of the Marne

First Battle of the Marne

The First Battle of the Marne was a battle of the First World War fought from 5 to 12 September 1914. It was fought in a collection of skirmishes around the Marne River Valley. It resulted in an Entente victory against the German armies in the west. The battle was the culmination of the Retreat from Mons and pursuit of the Franco-British armies which followed the Battle of the Frontiers in August and reached the eastern outskirts of Paris.

Front (military)

Front (military)

In a military context, the term front can have several meanings. According to official US Department of Defense and NATO definitions, a front can be "the line of contact of two opposing forces." This front line can be a local or tactical front, or it can range to a theater. An example of the latter was the Western Front in France and Belgium in World War I.

Artillery

Artillery

Artillery is a class of heavy military ranged weapons that launch munitions far beyond the range and power of infantry firearms. Early artillery development focused on the ability to breach defensive walls and fortifications during sieges, and led to heavy, fairly immobile siege engines. As technology improved, lighter, more mobile field artillery cannons developed for battlefield use. This development continues today; modern self-propelled artillery vehicles are highly mobile weapons of great versatility generally providing the largest share of an army's total firepower.

Barbed wire

Barbed wire

Barbed wire, also known as barb wire, is a type of steel fencing wire constructed with sharp edges or points arranged at intervals along the strands. Its primary use is the construction of inexpensive fences, and it is also used as a security measure atop walls surrounding property. As a wire obstacle, it is a major feature of the fortifications in trench warfare.

Battle of Verdun

Battle of Verdun

The Battle of Verdun was fought from 21 February to 18 December 1916 on the Western Front in France. The battle was the longest of the First World War and took place on the hills north of Verdun-sur-Meuse. The German 5th Army attacked the defences of the Fortified Region of Verdun and those of the French Second Army on the right (east) bank of the Meuse. Using the experience of the Second Battle of Champagne in 1915, the Germans planned to capture the Meuse Heights, an excellent defensive position, with good observation for artillery-fire on Verdun. The Germans hoped that the French would commit their strategic reserve to recapture the position and suffer catastrophic losses at little cost to the German infantry.

Battle of the Somme

Battle of the Somme

The Battle of the Somme, also known as the Somme offensive, was a battle of the First World War fought by the armies of the British Empire and the French Third Republic against the German Empire. It took place between 1 July and 18 November 1916 on both sides of the upper reaches of the river Somme in France. The battle was intended to hasten a victory for the Allies. More than three million men fought in the battle, of whom one million were either wounded or killed, making it one of the deadliest battles in all of human history.

Chemical weapons in World War I

Chemical weapons in World War I

The use of toxic chemicals as weapons dates back thousands of years, but the first large scale use of chemical weapons was during World War I. They were primarily used to demoralize, injure, and kill entrenched defenders, against whom the indiscriminate and generally very slow-moving or static nature of gas clouds would be most effective. The types of weapons employed ranged from disabling chemicals, such as tear gas, to lethal agents like phosgene, chlorine, and mustard gas. This chemical warfare was a major component of the first global war and first total war of the 20th century. The killing capacity of gas was limited, with about 90,000 fatalities from a total of 1.3 million casualties caused by gas attacks. Gas was unlike most other weapons of the period because it was possible to develop countermeasures, such as gas masks. In the later stages of the war, as the use of gas increased, its overall effectiveness diminished. The widespread use of these agents of chemical warfare, and wartime advances in the composition of high explosives, gave rise to an occasionally expressed view of World War I as "the chemist's war" and also the era where weapons of mass destruction were created.

Central Powers

Central Powers

The Central Powers, also known as the Central Empires, was one of the two main coalitions that fought in World War I (1914–1918). It consisted of the German Empire, Austria-Hungary, the Ottoman Empire, and the Kingdom of Bulgaria and was also known as the Quadruple Alliance.

Eastern Front (World War I)

Eastern Front (World War I)

The Eastern Front or Eastern Theater of World War I was a theater of operations that encompassed at its greatest extent the entire frontier between Russia and Romania on one side and Austria-Hungary, Bulgaria, the Ottoman Empire, and Germany on the other. It stretched from the Baltic Sea in the north to the Black Sea in the south, involved most of Eastern Europe, and stretched deep into Central Europe as well. The term contrasts with "Western Front", which was being fought in Belgium and France.

Allies of World War I

Allies of World War I

The Allies, or the Entente powers, were an international military coalition of countries led by France, the United Kingdom, Russia, the United States, Italy, and Japan against the Central Powers of Germany, Austria-Hungary, the Ottoman Empire, Bulgaria during the First World War (1914–1918).

Armistice of 11 November 1918

Armistice of 11 November 1918

The Armistice of 11 November 1918 was the armistice signed at Le Francport near Compiègne that ended fighting on land, sea, and air in World War I between the Entente and their last remaining opponent, Germany. Previous armistices had been agreed with Bulgaria, the Ottoman Empire and Austria-Hungary. It was concluded after the German government sent a message to American president Woodrow Wilson to negotiate terms on the basis of a recent speech of his and the earlier declared "Fourteen Points", which later became the basis of the German surrender at the Paris Peace Conference, which took place the following year.

1914

War plans – Battle of the Frontiers

Map of the Western Front and the Race to the Sea, 1914
Map of the Western Front and the Race to the Sea, 1914
French bayonet charge (1913 photograph)German infantry on the battlefield, 7 August 1914
French bayonet charge (1913 photograph)
French bayonet charge (1913 photograph)German infantry on the battlefield, 7 August 1914
German infantry on the battlefield, 7 August 1914

The Western Front was the place where the most powerful military forces in Europe, the German and French armies, met and where the First World War was decided.[12] At the outbreak of the war, the German Army, with seven field armies in the west and one in the east, executed a modified version of the Schlieffen Plan, bypassing French defenses along the common border by moving quickly through neutral Belgium, and then turning southwards to attack France and attempt to encircle the French Army and trap it on the German border.[13] Belgian neutrality had been guaranteed by Britain under the Treaty of London, 1839; this caused Britain to join the war at the expiration of its ultimatum at midnight on 4 August. Armies under German generals Alexander von Kluck and Karl von Bülow attacked Belgium on 4 August 1914. Luxembourg had been occupied without opposition on 2 August. The first battle in Belgium was the Battle of Liège, a siege that lasted from 5–16 August. Liège was well fortified and surprised the German Army under Bülow with its level of resistance. German heavy artillery was able to demolish the main forts within a few days.[14] Following the fall of Liège, most of the Belgian field army retreated to Antwerp, leaving the garrison of Namur isolated, with the Belgian capital, Brussels, falling to the Germans on 20 August. Although the German army bypassed Antwerp, it remained a threat to their flank. Another siege followed at Namur, lasting from about 20–23 August.[15]

The French deployed five armies on the frontier. The French Plan XVII was intended to bring about the capture of Alsace–Lorraine.[16] On 7 August, the VII Corps attacked Alsace to capture Mulhouse and Colmar. The main offensive was launched on 14 August with the First and Second Armies attacking toward Sarrebourg-Morhange in Lorraine.[17] In keeping with the Schlieffen Plan, the Germans withdrew slowly while inflicting severe losses upon the French. The French Third and Fourth Armies advanced toward the Saar and attempted to capture Saarburg, attacking Briey and Neufchateau but were repulsed.[18] The French VII Corps captured Mulhouse after a brief engagement first on 7 August, and then again on 23 August, but German reserve forces engaged them in the Battle of Mulhouse and forced the French to retreat twice.[19]

The German Army swept through Belgium, executing civilians and razing villages. The application of "collective responsibility" against a civilian population further galvanised the allies. Newspapers condemned the German invasion, violence against civilians and destruction of property, which became known as the "Rape of Belgium."[20][d] After marching through Belgium, Luxembourg and the Ardennes, the Germans advanced into northern France in late August, where they met the French Army, under Joseph Joffre, and the divisions of the British Expeditionary Force under Field Marshal Sir John French. A series of engagements known as the Battle of the Frontiers ensued, which included the Battle of Charleroi and the Battle of Mons. In the former battle the French Fifth Army was almost destroyed by the German 2nd and 3rd Armies and the latter delayed the German advance by a day. A general Allied retreat followed, resulting in more clashes at the Battle of Le Cateau, the Siege of Maubeuge and the Battle of St. Quentin (also called the First Battle of Guise).[22]

First Battle of the Marne

The German Army came within 70 km (43 mi) of Paris but at the First Battle of the Marne (6–12 September), French and British troops were able to force a German retreat by exploiting a gap which appeared between the 1st and 2nd Armies, ending the German advance into France.[23] The German Army retreated north of the Aisne and dug in there, establishing the beginnings of a static western front that was to last for the next three years. Following this German retirement, the opposing forces made reciprocal outflanking manoeuvres, known as the Race to the Sea and quickly extended their trench systems from the Swiss frontier to the North Sea.[24] The territory occupied by Germany held 64 percent of French pig-iron production, 24 percent of its steel manufacturing and 40 percent of the coal industry – dealing a serious blow to French industry.[25]

On the Entente side (those countries opposing the German alliance), the final lines were occupied with the armies of each nation defending a part of the front. From the coast in the north, the primary forces were from Belgium, the British Empire and then France. Following the Battle of the Yser in October, the Belgian army controlled a 35 km (22 mi) length of West Flanders along the coast, known as the Yser Front, along the Yser and the Ieperlee from Nieuwpoort to Boezinge.[26] Meanwhile, the British Expeditionary Force (BEF) occupied a position on the flank, having occupied a more central position.[27]

First Battle of Ypres

From 19 October until 22 November, the German forces made their final breakthrough attempt of 1914 during the First Battle of Ypres, which ended in a mutually-costly stalemate.[28] After the battle, Erich von Falkenhayn judged that it was no longer possible for Germany to win the war by purely military means and on 18 November 1914 he called for a diplomatic solution. The Chancellor, Theobald von Bethmann Hollweg; Generalfeldmarschall Paul von Hindenburg, commanding Ober Ost (Eastern Front high command); and his deputy, Erich Ludendorff, continued to believe that victory was achievable through decisive battles. During the Lodz offensive in Poland (11–25 November), Falkenhayn hoped that the Russians would be made amenable to peace overtures. In his discussions with Bethmann Hollweg, Falkenhayn viewed Germany and Russia as having no insoluble conflict and that the real enemies of Germany were France and Britain. A peace with only a few annexations of territory also seemed possible with France and that with Russia and France out of the war by negotiated settlements, Germany could concentrate on Britain and fight a long war with the resources of Europe at its disposal. Hindenburg and Ludendorff continued to believe that Russia could be defeated by a series of battles which cumulatively would have a decisive effect, after which Germany could finish off France and Britain.[29]

Trench warfare

German trench on the Western Front, 1915.
German trench on the Western Front, 1915.

Trench warfare in 1914, while not new, quickly improved and provided a very high degree of defense. According to two prominent historians:

Trenches were longer, deeper, and better defended by steel, concrete, and barbed wire than ever before. They were far stronger and more effective than chains of forts, for they formed a continuous network, sometimes with four or five parallel lines linked by interfacings. They were dug far below the surface of the earth out of reach of the heaviest artillery....Grand battles with the old maneuvers were out of the question. Only by bombardment, sapping, and assault could the enemy be shaken, and such operations had to be conducted on an immense scale to produce appreciable results. Indeed, it is questionable whether the German lines in France could ever have been broken if the Germans had not wasted their resources in unsuccessful assaults, and the blockade by sea had not gradually cut off their supplies. In such warfare no single general could strike a blow that would make him immortal; the "glory of fighting" sank down into the dirt and mire of trenches and dugouts.[30]

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Plan XVII

Plan XVII

Plan XVII was the name of a "scheme of mobilization and concentration" that was adopted by the French Conseil Supérieur de la Guerre from 1912 to 1914, to be put into effect by the French Army in the event of war between France and Germany. It was a plan for the mobilisation, concentration and deployment of the French armies and it made possible an invasion of Germany or Belgium or both before Germany completed the mobilisation of its reserves and simultaneous to an allied Russian offensive.

Battle of the Frontiers

Battle of the Frontiers

The Battle of the Frontiers comprised battles fought along the eastern frontier of France and in southern Belgium, shortly after the outbreak of the First World War. The battles resolved the military strategies of the French Chief of Staff General Joseph Joffre with Plan XVII and an offensive adaptation of the German Aufmarsch II deployment plan by Helmuth von Moltke the Younger. The German concentration on the right (northern) flank, was to wheel through Belgium and attack the French in the rear.

Race to the Sea

Race to the Sea

The Race to the Sea took place from about 17 September – 19 October 1914 during the First World War, after the Battle of the Frontiers and the German advance into France. The invasion had been stopped at the First Battle of the Marne (5–12 September) and was followed by the First Battle of the Aisne (13–28 September), a Franco-British counter-offensive. The term describes reciprocal attempts by the Franco-British and German armies to envelop the northern flank of the opposing army through the provinces of Picardy, Artois and Flanders, rather than an attempt to advance northwards to the sea. The "race" ended on the North Sea coast of Belgium around 19 October, when the last open area from Diksmuide to the North Sea was occupied by Belgian troops who had retreated after the Siege of Antwerp. The outflanking attempts had resulted in a number of encounter battles but neither side was able to gain a decisive victory.

French Army

French Army

The French Army, officially known as the Land Army, is the principal land warfare force of France, and the largest component of the French Armed Forces; it is responsible to the Government of France, alongside the French Navy, French Air and Space Force, and the National Gendarmerie. The Army is commanded by the Chief of Staff of the French Army (CEMAT), who is subordinate of the Chief of the Defence Staff (CEMA), who commands active service Army units and in turn is responsible to the President of France. CEMAT is also directly responsible to the Ministry of the Armed Forces for administration, preparation, and equipment.

Alexander von Kluck

Alexander von Kluck

Alexander Heinrich Rudolph von Kluck was a German general during World War I.

Karl von Bülow

Karl von Bülow

Karl Wilhelm Paul von Bülow was a German field marshal commanding the German 2nd Army during World War I from 1914 to 1915.

Luxembourg

Luxembourg

Luxembourg, officially the Grand Duchy of Luxembourg, is a small landlocked country in Western Europe. It borders Belgium to the west and north, Germany to the east, and France to the south. Its capital and most populous city, Luxembourg, is one of the four institutional seats of the European Union and the seat of several EU institutions, notably the Court of Justice of the European Union, the highest judicial authority. Luxembourg's culture, people, and languages are highly intertwined with its French and German neighbors; while Luxembourgish is the only national language of the Luxembourgish people, French is the only legal language, and all three — Luxembourgish, French and German — are considered official languages and are used for administrative matters in the country.

Battle of Liège

Battle of Liège

The Battle of Liège [also French: Bataille de Liège] was the opening engagement of the German invasion of Belgium and the first battle of the First World War. The city of Liège was protected by a ring of modern fortresses to form the Fortified position of Liège, one of several fortified cities to delay an invasion to allow troops from the powers which had guaranteed Belgian neutrality to assist the Belgian Army to expel the invaders.

Namur

Namur

Namur is a city and municipality in Wallonia, Belgium. It is the capital both of the province of Namur and of Wallonia, hosting the Parliament of Wallonia, the Government of Wallonia and its administration.

Brussels

Brussels

Brussels, officially the Brussels-Capital Region, is a region of Belgium comprising 19 municipalities, including the City of Brussels, which is the capital of Belgium. The Brussels-Capital Region is located in the central portion of the country and is a part of both the French Community of Belgium and the Flemish Community, but is separate from the Flemish Region and the Walloon Region.

Alsace–Lorraine

Alsace–Lorraine

Alsace–Lorraine, now called Alsace–Moselle, is a historical region located in modern day France. It was created in 1871 by the German Empire after it had seized the region from the Second French Empire in the Franco-Prussian War with the Treaty of Frankfurt. Alsace–Lorraine reverted to French ownership in 1918 as part of the Treaty of Versailles and Germany's defeat in World War I.

Saar (river)

Saar (river)

The Saar is a river in northeastern France and western Germany, and a right tributary of the Moselle. It rises in the Vosges mountains on the border of Alsace and Lorraine and flows northwards into the Moselle near Trier. It has two headstreams, that both start near Mont Donon, the highest peak of the northern Vosges. After 246 kilometres (153 mi) the Saar flows into the Moselle at Konz (Rhineland-Palatinate) between Trier and the Luxembourg border. It has a catchment area of 7,431 square kilometres (2,869 sq mi).

1915

Map of the Western Front, 1915–16
Map of the Western Front, 1915–16

Between the coast and the Vosges was a westward bulge in the trench line, named the Noyon salient for the captured French town at the maximum point of advance near Compiègne. Joffre's plan for 1915 was to attack the salient on both flanks to cut it off.[31] The Fourth Army had attacked in Champagne from 20 December 1914 – 17 March 1915 but the French were not able to attack in Artois at the same time. The Tenth Army formed the northern attack force and was to attack eastwards into the Douai plain across a 16-kilometre (9.9 mi) front between Loos and Arras.[32] On 10 March, as part of the larger offensive in the Artois region, the British Army fought the Battle of Neuve Chapelle to capture Aubers Ridge. The assault was made by four divisions along a 2 mi (3.2 km) front. Preceded by a surprise bombardment lasting only 35 minutes, the initial assault made rapid progress and the village was captured within four hours. The advance then slowed because of supply and communication difficulties. The Germans brought up reserves and counterattacked, forestalling the attempt to capture the ridge. Since the British had used about one-third of their supply of artillery ammunition, General Sir John French blamed the failure on the Shell Crisis of 1915, despite the early success.[33][34]

Gas warfare

All sides had signed the Hague Conventions of 1899 and 1907, which prohibited the use of chemical weapons in warfare. In 1914, there had been small-scale attempts by both the French and Germans to use various tear gases, which were not strictly prohibited by the early treaties but which were also ineffective.[35] The first use of more lethal chemical weapons on the Western Front was against the French near the Belgian town of Ypres. The Germans had already deployed gas against the Russians in the east at the Battle of Humin-Bolimów.[36]

An artist's rendition of Canadian troops at the Second Battle of Ypres
An artist's rendition of Canadian troops at the Second Battle of Ypres

Despite the German plans to maintain the stalemate with the French and British, Albrecht, Duke of Württemberg, commander of the 4th Army planned an offensive at Ypres, site of the First Battle of Ypres in November 1914. The Second Battle of Ypres, April 1915, was intended to divert attention from offensives in the Eastern Front and disrupt Franco-British planning. After a two-day bombardment, the Germans released a lethal cloud of 168 long tons (171 t) of chlorine onto the battlefield. Though primarily a powerful irritant, it can asphyxiate in high concentrations or prolonged exposure. Being heavier than air, the gas crept across no man's land and drifted into the French trenches.[37] The green-yellow cloud started killing some defenders and those in the rear fled in panic, creating an undefended 3.7-mile (6 km) gap in the Allied line. The Germans were unprepared for the level of their success and lacked sufficient reserves to exploit the opening. Canadian troops on the right drew back their left flank and halted the German advance.[38] The gas attack was repeated two days later and caused a 3.1 mi (5 km) withdrawal of the Franco-British line but the opportunity had been lost.[39]

The success of this attack would not be repeated, as the Allies countered by introducing gas masks and other countermeasures. An example of the success of these measures came a year later, on 27 April in the Gas attacks at Hulluch 40 km (25 mi) to the south of Ypres, where the 16th (Irish) Division withstood several German gas attacks.[40] The British retaliated, developing their own chlorine gas and using it at the Battle of Loos in September 1915. Fickle winds and inexperience led to more British casualties from the gas than German.[41] French, British and German forces all escalated the use of gas attacks through the rest of the war, developing the more deadly phosgene gas in 1915, then the infamous mustard gas in 1917, which could linger for days and could kill slowly and painfully. Countermeasures also improved and the stalemate continued.[42]

Air warfare

Specialised aeroplanes for aerial combat were introduced in 1915. Aircraft were already in use for scouting and on 1 April, the French pilot Roland Garros became the first to shoot down an enemy aircraft by using a machine-gun that shot forward through the propeller blades. This was achieved by crudely reinforcing the blades to deflect bullets.[43] Several weeks later Garros force-landed behind German lines. His aeroplane was captured and sent to Dutch engineer Anthony Fokker, who soon produced a significant improvement, the interrupter gear, in which the machine gun is synchronised with the propeller so it fires in the intervals when the blades of the propeller are out of the line of fire. This advance was quickly ushered into service, in the Fokker E.I (Eindecker, or monoplane, Mark 1), the first single seat fighter aircraft to combine a reasonable maximum speed with an effective armament. Max Immelmann scored the first confirmed kill in an Eindecker on 1 August.[44] Both sides developed improved weapons, engines, airframes and materials, until the end of the war. It also inaugurated the cult of the ace, the most famous being Manfred von Richthofen (the Red Baron). Contrary to the myth, anti-aircraft fire claimed more kills than fighters.[45]

Spring offensive

Ruins of Carency after it was recaptured by France
Ruins of Carency after it was recaptured by France

The final Entente offensive of the spring was the Second Battle of Artois, an offensive to capture Vimy Ridge and advance into the Douai plain. The French Tenth Army attacked on 9 May after a six-day bombardment and advanced 5 kilometres (3 mi) to capture Vimy Ridge. German reinforcements counter-attacked and pushed the French back towards their starting points because French reserves had been held back and the success of the attack had come as a surprise. By 15 May the advance had been stopped, although the fighting continued until 18 June.[46] In May the German Army captured a French document at La Ville-aux-Bois describing a new system of defence. Rather than relying on a heavily fortified front line, the defence was to be arranged in a series of echelons. The front line would be a thinly manned series of outposts, reinforced by a series of strongpoints and a sheltered reserve. If a slope was available, troops were deployed along the rear side for protection. The defence became fully integrated with command of artillery at the divisional level. Members of the German high command viewed this new scheme with some favour and it later became the basis of an elastic defence in depth doctrine against Entente attacks.[47][48]

During the autumn of 1915, the "Fokker Scourge" began to have an effect on the battlefront as Allied reconnaissance aircraft were nearly driven from the skies. These reconnaissance aircraft were used to direct gunnery and photograph enemy fortifications but now the Allies were nearly blinded by German fighters.[49] However, the impact of German air superiority was diminished by their primarily defensive doctrine in which they tended to remain over their own lines, rather than fighting over Allied held territory.[50]

Autumn offensive

In September 1915 the Entente allies launched another offensive, with the French Third Battle of Artois, Second Battle of Champagne and the British at Loos. The French had spent the summer preparing for this action, with the British assuming control of more of the front to release French troops for the attack. The bombardment, which had been carefully targeted by means of aerial photography,[51] began on 22 September. The main French assault was launched on 25 September and, at first, made good progress in spite of surviving wire entanglements and machine gun posts. Rather than retreating, the Germans adopted a new defence-in-depth scheme that consisted of a series of defensive zones and positions with a depth of up to 8.0 km (5 mi).[52]

On 25 September, the British began the Battle of Loos, part of the Third Battle of Artois, which was meant to supplement the larger Champagne attack. The attack was preceded by a four-day artillery bombardment of 250,000 shells and a release of 5,100 cylinders of chlorine gas.[53][54] The attack involved two corps in the main assault and two corps performing diversionary attacks at Ypres. The British suffered heavy losses, especially due to machine gun fire during the attack and made only limited gains before they ran out of shells. A renewal of the attack on 13 October fared little better.[55] In December, French was replaced by General Douglas Haig as commander of the British forces.[56]

Discover more about 1915 related topics

Noyon

Noyon

Noyon is a commune in the Oise department, northern France.

Compiègne

Compiègne

Compiègne is a commune in the Oise department in northern France. It is located on the river Oise. Its inhabitants are called Compiégnois.

10th Army (France)

10th Army (France)

The Tenth Army was a Field army of the French Army during World War I and World War II.

British Army

British Army

The British Army is the principal land warfare force of the United Kingdom, a part of the British Armed Forces along with the Royal Navy and the Royal Air Force. As of 2022, the British Army comprises 79,380 regular full-time personnel, 4,090 Gurkhas, and 28,330 volunteer reserve personnel.

Battle of Neuve Chapelle

Battle of Neuve Chapelle

The Battle of Neuve Chapelle took place in the First World War in the Artois region of France. The attack was intended to cause a rupture in the German lines, which would then be exploited with a rush to the Aubers Ridge and possibly Lille. A French assault at Vimy Ridge on the Artois plateau was also planned to threaten the road, rail and canal junctions at La Bassée from the south as the British attacked from the north. The British attackers broke through German defences in a salient at the village of Neuve-Chapelle but the success could not be exploited.

Counterattack

Counterattack

A counterattack is a tactic employed in response to an attack, with the term originating in "war games". The general objective is to negate or thwart the advantage gained by the enemy during attack, while the specific objectives typically seek to regain lost ground or destroy the attacking enemy.

Chemical weapons in World War I

Chemical weapons in World War I

The use of toxic chemicals as weapons dates back thousands of years, but the first large scale use of chemical weapons was during World War I. They were primarily used to demoralize, injure, and kill entrenched defenders, against whom the indiscriminate and generally very slow-moving or static nature of gas clouds would be most effective. The types of weapons employed ranged from disabling chemicals, such as tear gas, to lethal agents like phosgene, chlorine, and mustard gas. This chemical warfare was a major component of the first global war and first total war of the 20th century. The killing capacity of gas was limited, with about 90,000 fatalities from a total of 1.3 million casualties caused by gas attacks. Gas was unlike most other weapons of the period because it was possible to develop countermeasures, such as gas masks. In the later stages of the war, as the use of gas increased, its overall effectiveness diminished. The widespread use of these agents of chemical warfare, and wartime advances in the composition of high explosives, gave rise to an occasionally expressed view of World War I as "the chemist's war" and also the era where weapons of mass destruction were created.

Hague Conventions of 1899 and 1907

Hague Conventions of 1899 and 1907

The Hague Conventions of 1899 and 1907 are a series of international treaties and declarations negotiated at two international peace conferences at The Hague in the Netherlands. Along with the Geneva Conventions, the Hague Conventions were among the first formal statements of the laws of war and war crimes in the body of secular international law. A third conference was planned for 1914 and later rescheduled for 1915, but it did not take place because of the start of World War I.

Chemical weapon

Chemical weapon

A chemical weapon (CW) is a specialized munition that uses chemicals formulated to inflict death or harm on humans. According to the Organisation for the Prohibition of Chemical Weapons (OPCW), this can be any chemical compound intended as a weapon "or its precursor that can cause death, injury, temporary incapacitation or sensory irritation through its chemical action. Munitions or other delivery devices designed to deliver chemical weapons, whether filled or unfilled, are also considered weapons themselves."

Battle of Humin-Bolimów

Battle of Humin-Bolimów

The Battle of Humin-Bolimów was an inconclusive battle of World War I fought on January 14, 1915 - February 28, 1915 between Imperial German Army and Russia and considered a preliminary to the Second Battle of the Masurian Lakes.

Albrecht, Duke of Württemberg

Albrecht, Duke of Württemberg

Albrecht, Duke and Crown Prince of Württemberg was the last Württemberger crown prince, a German military commander of the First World War, and the head of the House of Württemberg from 1921 to his death.

4th Army (German Empire)

4th Army (German Empire)

The 4th Army was an army level command of the German Army in World War I. It was formed on mobilization in August 1914 from the VI Army Inspection. The army was disbanded in 1919 during demobilization after the war.

1916

German soldier on the Western Front in 1916
German soldier on the Western Front in 1916

Falkenhayn believed that a breakthrough might no longer be possible and instead focused on forcing a French defeat by inflicting massive casualties.[57] His new goal was to "bleed France white."[58] As such, he adopted two new strategies. The first was the use of unrestricted submarine warfare to cut off Allied supplies arriving from overseas.[59] The second would be attacks against the French army intended to inflict maximum casualties; Falkenhayn planned to attack a position from which the French could not retreat, for reasons of strategy and national pride and thus trap the French. The town of Verdun was chosen for this because it was an important stronghold, surrounded by a ring of forts, that lay near the German lines and because it guarded the direct route to Paris.[60]

Falkenhayn limited the size of the front to 5–6 kilometres (3–4 mi) to concentrate artillery firepower and to prevent a breakthrough from a counter-offensive. He also kept tight control of the main reserve, feeding in just enough troops to keep the battle going.[61] In preparation for their attack, the Germans had amassed a concentration of aircraft near the fortress. In the opening phase, they swept the air space of French aircraft, which allowed German artillery-observation aircraft and bombers to operate without interference. In May, the French countered by deploying escadrilles de chasse with superior Nieuport fighters and the air over Verdun turned into a battlefield as both sides fought for air superiority.[62]

Battle of Verdun

French soldiers observing enemy movements
French soldiers observing enemy movements

The Battle of Verdun began on 21 February 1916 after a nine-day delay due to snow and blizzards. After a massive eight-hour artillery bombardment, the Germans did not expect much resistance as they slowly advanced on Verdun and its forts.[63] Sporadic French resistance was encountered. The Germans took Fort Douaumont and then reinforcements halted the German advance by 28 February.[64]

The Germans turned their focus to Le Mort Homme on the west bank of the Meuse which blocked the route to French artillery emplacements, from which the French fired across the river. After some of the most intense fighting of the campaign, the hill was taken by the Germans in late May. After a change in French command at Verdun from the defensive-minded Philippe Pétain to the offensive-minded Robert Nivelle, the French attempted to re-capture Fort Douaumont on 22 May but were easily repulsed. The Germans captured Fort Vaux on 7 June and with the aid of diphosgene gas, came within 1 kilometre (1,100 yd) of the last ridge before Verdun before being contained on 23 June.[65]

Over the summer, the French slowly advanced. With the development of the rolling barrage, the French recaptured Fort Vaux in November and by December 1916 they had pushed the Germans back 2.1 kilometres (1.3 mi) from Fort Douaumont, in the process rotating 42 divisions through the battle. The Battle of Verdun—also known as the 'Mincing Machine of Verdun' or 'Meuse Mill'[66]—became a symbol of French determination and self-sacrifice.[67]

Battle of the Somme

British infantry advance near Ginchy. Photo by Ernest Brooks.
British infantry advance near Ginchy. Photo by Ernest Brooks.

In the spring, Allied commanders had been concerned about the ability of the French Army to withstand the enormous losses at Verdun. The original plans for an attack around the River Somme were modified to let the British make the main effort. This would serve to relieve pressure on the French, as well as the Russians who had also suffered great losses. On 1 July, after a week of heavy rain, British divisions in Picardy began the Battle of the Somme with the Battle of Albert, supported by five French divisions on their right flank. The attack had been preceded by seven days of heavy artillery bombardment. The experienced French forces were successful in advancing but the British artillery cover had neither blasted away barbed wire, nor destroyed German trenches as effectively as was planned. They suffered the greatest number of casualties (killed, wounded and missing) in a single day in the history of the British Army, about 57,000.[68]

The Verdun lesson learnt, the Allies' tactical aim became the achievement of air superiority and until September, German aircraft were swept from the skies over the Somme. The success of the Allied air offensive caused a reorganisation of the German air arm and both sides began using large formations of aircraft rather than relying on individual combat.[69] After regrouping, the battle continued throughout July and August, with some success for the British despite the reinforcement of the German lines. By August, General Haig had concluded that a breakthrough was unlikely and instead, switched tactics to a series of small unit actions.[70] The effect was to straighten out the front line, which was thought necessary in preparation for a massive artillery bombardment with a major push.[71]

The final phase of the battle of the Somme saw the first use of the tank on the battlefield.[72] The Allies prepared an attack that would involve 13 British and Imperial divisions and four French corps. The attack made early progress, advancing 3,200–4,100 metres (3,500–4,500 yd) in places but the tanks had little effect due to their lack of numbers and mechanical unreliability.[73] The final phase of the battle took place in October and early November, again producing limited gains with heavy loss of life. All told, the Somme battle had made penetrations of only 8 kilometres (5 mi) and failed to reach the original objectives. The British had suffered about 420,000 casualties and the French around 200,000. It is estimated that the Germans lost 465,000, although this figure is controversial.[74]

The Somme led directly to major new developments in infantry organisation and tactics; despite the terrible losses of 1 July, some divisions had managed to achieve their objectives with minimal casualties. In examining the reasons behind losses and achievements, once the British war economy produced sufficient equipment and weapons, the army made the platoon the basic tactical unit, similar to the French and German armies. At the time of the Somme, British senior commanders insisted that the company (120 men) was the smallest unit of manoeuvre; less than a year later, the section of ten men would be so.[75]

Hindenburg line

The Hindenburg Line at Bullecourt seen from the air
The Hindenburg Line at Bullecourt seen from the air

In August 1916 the German leadership along the Western Front had changed as Falkenhayn resigned and was replaced by Hindenburg and Ludendorff. The new leaders soon recognised that the battles of Verdun and the Somme had depleted the offensive capabilities of the German Army. They decided that the German Army in the west would go over to the strategic defensive for most of 1917, while the Central powers would attack elsewhere.[76]

During the Somme battle and through the winter months, the Germans created a fortification behind the Noyon Salient that would be called the Hindenburg Line, using the defensive principles elaborated since the defensive battles of 1915, including the use of Eingreif divisions.[77] This was intended to shorten the German front, freeing 10 divisions for other duties. This line of fortifications ran from Arras south to St Quentin and shortened the front by about 50 kilometres (30 mi).[76] British long-range reconnaissance aircraft first spotted the construction of the Hindenburg Line in November 1916.[78]

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Patriotism

Patriotism

Patriotism is the feeling of love, devotion, and sense of attachment to one's country. This attachment can be a combination of many different feelings, language relating to one's own homeland, including ethnic, cultural, political or historical aspects. It encompasses a set of concepts closely related to nationalism, mostly civic nationalism and sometimes cultural nationalism.

Nieuport

Nieuport

Nieuport, later Nieuport-Delage, was a French aeroplane company that primarily built racing aircraft before World War I and fighter aircraft during World War I and between the wars.

Battle of Verdun

Battle of Verdun

The Battle of Verdun was fought from 21 February to 18 December 1916 on the Western Front in France. The battle was the longest of the First World War and took place on the hills north of Verdun-sur-Meuse. The German 5th Army attacked the defences of the Fortified Region of Verdun and those of the French Second Army on the right (east) bank of the Meuse. Using the experience of the Second Battle of Champagne in 1915, the Germans planned to capture the Meuse Heights, an excellent defensive position, with good observation for artillery-fire on Verdun. The Germans hoped that the French would commit their strategic reserve to recapture the position and suffer catastrophic losses at little cost to the German infantry.

Fort Douaumont

Fort Douaumont

Fort Douaumont was the largest and highest fort on the ring of 19 large defensive works which had protected the city of Verdun, France, since the 1890s. By 1915, the French General Staff had concluded that even the best-protected forts of Verdun could not withstand bombardments from the German 420 mm Gamma guns. These new super-heavy howitzers had easily taken several large Belgian forts out of action in August 1914. Fort Douaumont and other Verdun forts were judged ineffective and had been partly disarmed and left virtually undefended since 1915. On 25 February 1916, Fort Douaumont was entered and occupied without a fight by a small German raiding party comprising only 19 officers and 79 men, entering via an open window by the moat. The easy fall of Fort Douaumont, only three days after the beginning of the Battle of Verdun, shocked the French Army. It set the stage for the rest of a battle which lasted nine months, at enormous human cost. Douaumont was finally recaptured by three infantry divisions of the Second Army, during the First Offensive Battle of Verdun on 24 October 1916. This event brought closure to the battle in 1916.

Le Mort Homme

Le Mort Homme

The heights of Le Mort Homme or Dead Man's Hill lie within the French municipality of Cumières-le-Mort-Homme around 10 km (6 mi) north-west of the city of Verdun in France. The hill became known during the Battle of Verdun during the First World War as the site of much fighting.

Philippe Pétain

Philippe Pétain

Henri Philippe Benoni Omer Pétain, commonly known as Philippe Pétain or Marshal Pétain, was a French general who attained the position of Marshal of France at the end of World War I, during which he became known as The Lion of Verdun. From 1940 to 1944, during World War II, he served as head of the collaborationist regime of Vichy France. Pétain, who was 84 years old when he became Prime Minister, remains the oldest person to become the head of state of France.

Fort Vaux

Fort Vaux

Fort Vaux, in Vaux-Devant-Damloup, Meuse, France, was a polygonal fort forming part of the ring of 19 large defensive works intended to protect the city of Verdun. Built from 1881 to 1884 for 1,500,000 francs, it housed a garrison of 150 men. Vaux was the second fort to fall in the Battle of Verdun after Fort Douaumont, which was captured by a small German raiding party in February 1916 in the confusion of the French retreat from the Woëvre plain. Vaux had been modernised before 1914 with reinforced concrete top protection like Fort Douaumont and was not destroyed by a German heavy artillery fire, which had included shelling by 16-inch (410 mm) howitzers. The superstructure of the fort was badly damaged but the garrison, the deep interior corridors and stations were intact when the fort was attacked on 2 June by German Stormtroops.

Diphosgene

Diphosgene

Diphosgene is an organic chemical compound with the formula ClCO2CCl3. This colorless liquid is a valuable reagent in the synthesis of organic compounds. Diphosgene is related to phosgene and has comparable toxicity, but is more conveniently handled because it is a liquid, whereas phosgene is a gas.

Barrage (artillery)

Barrage (artillery)

In military usage, a barrage is massed sustained artillery fire (shelling) aimed at a series of points along a line. In addition to attacking any enemy in the kill zone, a barrage intends to suppress enemy movements and deny access across that line of barrage. The impact points along the line may be 20–30 yards/meters apart, with the total line length of the barrage zone anything from a few hundred to several thousand yards/meters long. Barrages can consist of multiple such lines, usually about 100 yards/meters apart, with the barrage shifting from one line to the next over time, or several lines may be targeted simultaneously.

Battle of the Somme

Battle of the Somme

The Battle of the Somme, also known as the Somme offensive, was a battle of the First World War fought by the armies of the British Empire and the French Third Republic against the German Empire. It took place between 1 July and 18 November 1916 on both sides of the upper reaches of the river Somme in France. The battle was intended to hasten a victory for the Allies. More than three million men fought in the battle, of whom one million were either wounded or killed, making it one of the deadliest battles in all of human history.

Ernest Brooks (photographer)

Ernest Brooks (photographer)

Ernest Brooks was a British photographer, best known for his war photography from the First World War. He was the first official photographer to be appointed by the British military, and produced several thousand images between 1915 and 1918, more than a tenth of all British official photographs taken during the war. His work was often posed and formal, but several of his less conventional images are marked by a distinctive use of silhouette. Before and immediately after the war he worked as an official photographer to the Royal Family, but was dismissed from this appointment and stripped of his official honours in 1925, for reasons that were not officially made public.

Battle of Albert (1916)

Battle of Albert (1916)

The Battle of Albert is the British name for the first two weeks of British–French offensive operations of the Battle of the Somme. The Allied preparatory artillery bombardment commenced on 24 June and the British–French infantry attacked on 1 July, on the south bank from Foucaucourt to the Somme and from the Somme north to Gommecourt, 2 mi (3.2 km) beyond Serre. The French Sixth Army and the right wing of the British Fourth Army inflicted a considerable defeat on the German 2nd Army but from near the Albert–Bapaume road to Gommecourt, the British attack was a disaster, where most of the c.  57,000 British casualties of the day were incurred. Against the wishes of General Joseph Joffre, General Sir Douglas Haig abandoned the offensive north of the road to reinforce the success in the south, where the British–French forces pressed forward through several intermediate lines closer to the German second position.

1917

Map of the Western Front, 1917
Map of the Western Front, 1917

The Hindenburg Line was built between 2 mi (3.2 km) and 30 mi (48 km) behind the German front line.[79] On 25 February the German armies west of the line began Operation Alberich a withdrawal to the line and completed the retirement on 5 April, leaving a supply desert of scorched earth to be occupied by the Allies. This withdrawal negated the French strategy of attacking both flanks of the Noyon salient, as it no longer existed.[80] The British continued offensive operations as the War Office claimed, with some justice, that this withdrawal resulted from the casualties the Germans received during the Battles of the Somme and Verdun, despite the Allies suffering greater losses.[81]

On 6 April the United States declared war on Germany. In early 1915, following the sinking of the Lusitania, Germany had stopped unrestricted submarine warfare in the Atlantic because of concerns of drawing the United States into the conflict. With the growing discontent of the German public due to the food shortages, the government resumed unrestricted submarine warfare in February 1917. The calculated that a successful submarine and warship siege of Britain would force that country out of the war within six months, while American forces would take a year to become a serious factor on the Western Front. The submarine and surface ships had a long period of success before Britain resorted to the convoy system, bringing a large reduction in shipping losses.[82]

British Army on the Western Front (August 1917)
British Army on the Western Front (August 1917)

By 1917, the size of the British Army on the Western Front had grown to two-thirds of the size of the French force.[25] In April 1917 the BEF began the Battle of Arras.[83] The Canadian Corps and the 5th Division of the First Army, fought the Battle of Vimy Ridge, completing the capture of the ridge and the Third Army to the south achieved the deepest advance since trench warfare began. Later attacks were confronted by German reinforcements defending the area using the lessons learned on the Somme in 1916. British attacks were contained and, according to Gary Sheffield, a greater rate of daily loss was inflicted on the British than in "any other major battle".[84]

During the winter of 1916–1917, German air tactics had been improved, a fighter training school was opened at Valenciennes and better aircraft with twin guns were introduced. The result was higher losses of Allied aircraft, particularly for the British, Portuguese, Belgians and Australians who were struggling with outmoded aircraft, poor training and tactics. The Allied air successes over the Somme were not be repeated. During their attack at Arras, the British lost 316 air crews and the Canadians lost 114 compared to 44 lost by the Germans.[85] This became known to the Royal Flying Corps as Bloody April.[86]

Nivelle Offensive

The same month, the French Commander-in-chief, General Robert Nivelle, ordered a new offensive against the German trenches, promising that it would end the war within 48 hours. The 16 April attack, dubbed the Nivelle Offensive (also known as the Second Battle of the Aisne), would be 1.2 million men strong, preceded by a week-long artillery bombardment and accompanied by tanks. The offensive proceeded poorly as the French troops, with the help of two Russian brigades, had to negotiate rough, upward-sloping terrain in extremely bad weather.[87] Planning had been dislocated by the voluntary German withdrawal to the Hindenburg Line. Secrecy had been compromised and German aircraft gained air superiority, making reconnaissance difficult and in places, the creeping barrage moved too fast for the French troops.[88] Within a week the French suffered 120,000 casualties. Despite the casualties and his promise to halt the offensive if it did not produce a breakthrough, Nivelle ordered the attack to continue into May.[83]

On 3 May the weary French 2nd Colonial Division, veterans of the Battle of Verdun, refused orders, arriving drunk and without their weapons. Lacking the means to punish an entire division, its officers did not immediately implement harsh measures against the mutineers. Mutinies occurred in 54 French divisions and 20,000 men deserted. Other Allied forces attacked but suffered massive casualties.[89] Appeals to patriotism and duty followed, as did mass arrests and trials. The French soldiers returned to defend their trenches but refused to participate in further offensive action.[90] On 15 May Nivelle was removed from command, replaced by Pétain who immediately stopped the offensive.[91] The French would go on the defensive for the following months to avoid high casualties and to restore confidence in the French High Command, while the British assumed greater responsibility.[92]

American Expeditionary Force

On 25 June the first US troops began to arrive in France, forming the American Expeditionary Force. However, the American units did not enter the trenches in divisional strength until October. The incoming troops required training and equipment before they could join in the effort, and for several months American units were relegated to support efforts.[93] In spite of this, however, their presence provided a much-needed boost to Allied morale, with the promise of further reinforcements that could tip the manpower balance towards the Allies.[94]

Flanders offensive

Two United States soldiers run toward a bunker past the bodies of two German soldiers.
Two United States soldiers run toward a bunker past the bodies of two German soldiers.

In June, the British launched an offensive in Flanders, in part to take the pressure off the French armies on the Aisne, after the French part of the Nivelle Offensive failed to achieve the strategic victory that had been planned and French troops began to mutiny.[92] The offensive began on 7 June, with a British attack on Messines Ridge, south of Ypres, to retake the ground lost in the First and Second battles in 1914. Since 1915 specialist Royal Engineer tunnelling companies had been digging tunnels under the ridge, and about 500 t (490 long tons) of explosives had been planted in 21 mines under the German defences.[95] Following several weeks of bombardment, the explosives in 19 of these mines were detonated, killing up to 7,000 German troops. The infantry advance that followed relied on three creeping barrages which the British infantry followed to capture the plateau and the east side of the ridge in one day. German counter-attacks were defeated and the southern flank of the Gheluvelt plateau was protected from German observation.[96]

On 11 July 1917, during Unternehmen Strandfest (Operation Beachparty) at Nieuport on the coast, the Germans introduced a new weapon into the war when they fired a powerful blistering agent Sulfur mustard (Yellow Cross) gas. The artillery deployment allowed heavy concentrations of the gas to be used on selected targets. Mustard gas was persistent and could contaminate an area for days, denying it to the British, an additional demoralising factor. The Allies increased production of gas for chemical warfare but took until late 1918 to copy the Germans and begin using mustard gas.[97]

From 31 July to 10 November the Third Battle of Ypres included the First Battle of Passchendaele and culminated in the Second Battle of Passchendaele.[98] The battle had the original aim of capturing the ridges east of Ypres then advancing to Roulers and Thourout to close the main rail line supplying the German garrisons on the Western front north of Ypres. If successful the northern armies were then to capture the German submarine bases on the Belgian coast. It was later restricted to advancing the British Army onto the ridges around Ypres, as the unusually wet weather slowed British progress. The Canadian Corps relieved the II ANZAC Corps and took the village of Passchendaele on 6 November,[99] despite rain, mud and many casualties. The offensive was costly in manpower for both sides for relatively little gain of ground against determined German resistance but the ground captured was of great tactical importance. In the drier periods, the British advance was inexorable and during the unusually wet August and in the Autumn rains that began in early October, the Germans achieved only costly defensive successes, which led the German commanders in early October to begin preparations for a general retreat. Both sides lost a combined total of over a half million men during this offensive.[100] The battle has become a byword among some British revisionist historians for bloody and futile slaughter, whilst the Germans called Passchendaele "the greatest martyrdom of the war."[101]

Battle of Cambrai

On 20 November the British launched the first massed tank attack and the first attack using predicted artillery-fire (aiming artillery without firing the guns to obtain target data) at the Battle of Cambrai.[102] The Allies attacked with 324 tanks (with one-third held in reserve) and twelve divisions, advancing behind a hurricane bombardment, against two German divisions. The machines carried fascines on their fronts to bridge trenches and the 13-foot-wide (4 m) German tank traps. Special "grapnel tanks" towed hooks to pull away the German barbed wire. The attack was a great success for the British, who penetrated further in six hours than at the Third Ypres in four months, at a cost of only 4,000 British casualties.[103] The advance produced an awkward salient and a surprise German counter-offensive began on 30 November, which drove back the British in the south and failed in the north. Despite the reversal, the attack was seen as a success by the Allies, proving that tanks could overcome trench defences. The Germans realised that the use of tanks by the Allies posed a new threat to any defensive strategy they might mount. The battle had also seen the first mass use of German Stosstruppen on the Western front in the attack, who used infantry infiltration tactics to penetrate British defences, bypassing resistance and quickly advancing into the British rear.[104]

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Hindenburg Line

Hindenburg Line

The Hindenburg Line was a German defensive position built during the winter of 1916–1917 on the Western Front during the First World War. The line ran from Arras to Laffaux, near Soissons on the Aisne. In 1916, the Battle of Verdun and the Battle of the Somme left the German western armies exhausted and on the Eastern Front, the Brusilov Offensive had inflicted huge losses on the Austro-Hungarian armies and forced the Germans to take over more of the front. The declaration of war by Romania had placed additional strain on the German army and war economy.

Operation Alberich

Operation Alberich

Operation Alberich was the code name of a German military operation in France during the First World War. Two salients had been formed during the Battle of the Somme in 1916 between Arras and Saint-Quentin and from Saint-Quentin to Noyon. Alberich was planned as a strategic withdrawal to new positions on the shorter and more easily defended Hindenburg Line. General Erich Ludendorff was reluctant to order the withdrawal and hesitated until the last moment.

Scorched earth

Scorched earth

A scorched-earth policy is a military strategy that aims to destroy anything that might be useful to the enemy. Any assets that could be used by the enemy may be targeted, which usually includes obvious weapons, transport vehicles, communication sites, and industrial resources. However, anything useful to the advancing enemy may be targeted, including food stores and agricultural areas, water sources, and even the local people themselves, though the latter group of targets has been banned under the 1977 Geneva Conventions.

RMS Lusitania

RMS Lusitania

RMS Lusitania was a British ocean liner that was launched by the Cunard Line in 1906 and that held the Blue Riband appellation for the fastest Atlantic crossing in 1908. It was briefly the world's largest passenger ship until the completion of the Mauretania three months later. She was sunk on her 202nd trans-Atlantic crossing, on 7 May 1915, by a German U-boat 11 miles (18 km) off the southern coast of Ireland, killing 1,198 passengers and crew.

Battle of Arras (1917)

Battle of Arras (1917)

The Battle of Arras was a British offensive on the Western Front during the First World War. From 9 April to 16 May 1917, British troops attacked German defences near the French city of Arras on the Western Front. The British achieved the longest advance since trench warfare had begun, surpassing the record set by the French Sixth Army on 1 July 1916. The British advance slowed in the next few days and the German defence recovered. The battle became a costly stalemate for both sides and by the end of the battle, the British Third Army and the First Army had suffered about 160,000 casualties and the German 6th Army about 125,000.

Canadian Corps

Canadian Corps

The Canadian Corps was a World War I corps formed from the Canadian Expeditionary Force in September 1915 after the arrival of the 2nd Canadian Division in France. The corps was expanded by the addition of the 3rd Canadian Division in December 1915 and the 4th Canadian Division in August 1916. The organization of a 5th Canadian Division began in February 1917 but it was still not fully formed when it was broken up in February 1918 and its men used to reinforce the other four divisions.

5th Infantry Division (United Kingdom)

5th Infantry Division (United Kingdom)

The 5th Infantry Division was a regular army infantry division of the British Army. It was established by Arthur Wellesley, 1st Duke of Wellington for service in the Peninsular War, as part of the Anglo-Portuguese Army, and was active for most of the period since, including the First World War and the Second World War and was disbanded soon after. The division was reformed in 1995 as an administrative division covering Wales and the English regions of West Midlands, East Midlands and East. Its headquarters were in Shrewsbury. It was disbanded on 1 April 2012.

Battle of Vimy Ridge

Battle of Vimy Ridge

The Battle of Vimy Ridge was part of the Battle of Arras, in the Pas-de-Calais department of France, during the First World War. The main combatants were the four divisions of the Canadian Corps in the First Army, against three divisions of the German 6th Army. The battle took place from 9 to 12 April 1917 at the beginning of the Battle of Arras, the first attack of the Nivelle Offensive, which was intended to attract German reserves from the French, before the French attempt at a decisive offensive on the Aisne and the Chemin des Dames ridge further south, several days later.

Royal Flying Corps

Royal Flying Corps

The Royal Flying Corps (RFC) was the air arm of the British Army before and during the First World War until it merged with the Royal Naval Air Service on 1 April 1918 to form the Royal Air Force. During the early part of the war, the RFC supported the British Army by artillery co-operation and photographic reconnaissance. This work gradually led RFC pilots into aerial battles with German pilots and later in the war included the strafing of enemy infantry and emplacements, the bombing of German military airfields and later the strategic bombing of German industrial and transport facilities.

Bloody April

Bloody April

Bloody April was the British air support operation during the Battle of Arras in April 1917, during which particularly heavy casualties were suffered by the Royal Flying Corps at the hands of the German Luftstreitkräfte.

1917 French Army mutinies

1917 French Army mutinies

The 1917 French Army mutinies took place amongst French Army troops on the Western Front in Northern France during World War I. They started just after the unsuccessful and costly Second Battle of the Aisne, the main action in the Nivelle Offensive in April 1917. The new French commander of the armies in France, General Robert Nivelle, had promised a decisive victory over the Germans in 48 hours; morale in French armies rose to a great height and the shock of failure soured their mood overnight.

Commander-in-chief

Commander-in-chief

A commander-in-chief or supreme commander is the person who exercises supreme command and control over an armed force or a military branch. As a technical term, it refers to military competencies that reside in a country's executive leadership, a head of state, head of government, or other designated government official.

1918

Map of the final German offensives, 1918
Map of the final German offensives, 1918

Following the successful Allied attack and penetration of the German defences at Cambrai, Ludendorff and Hindenburg determined that the only opportunity for German victory lay in a decisive attack along the Western front during the spring, before American manpower became overwhelming. On 3 March 1918, the Treaty of Brest-Litovsk was signed and Russia withdrew from the war. This would now have a dramatic effect on the conflict as 33 divisions were released from the Eastern Front for deployment to the west. The Germans occupied almost as much Russian territory under the provisions of the Treaty of Brest-Litovsk as they did in the Second World War but this considerably restricted their troop redeployment. The Germans achieved an advantage of 192 divisions in the west to the 178 Allied divisions, which allowed Germany to pull veteran units from the line and retrain them as Stosstruppen (40 infantry and 3 cavalry divisions were retained for German occupation duties in the east).[105]

The Allies lacked unity of command and suffered from morale and manpower problems, the British and French armies were severely depleted and not in a position to attack in the first half of the year, while the majority of the newly arrived American troops were still training, with just six complete divisions in the line.[106] Ludendorff decided on an offensive strategy beginning with a big attack against the British on the Somme, to separate them from the French and drive them back to the channel ports.[107][108] The attack would combine the new storm troop tactics with over 700 aircraft,[109] tanks and a carefully planned artillery barrage that would include gas attacks.[110][111]

German spring offensives

German tank in Roye, 21 March 1918
German tank in Roye, 21 March 1918

Operation Michael, the first of the German spring offensives, very nearly succeeded in driving the Allied armies apart, advancing to within shelling distance of Paris for the first time since 1914.[112] As a result of the battle, the Allies agreed on unity of command. General Ferdinand Foch was appointed commander of all Allied forces in France. The unified Allies were better able to respond to each of the German drives and the offensive turned into a battle of attrition.[113] In May, the American divisions also began to play an increasing role, winning their first victory in the Battle of Cantigny. By summer, between 250,000 and 300,000 American soldiers were arriving every month.[114] A total of 2.1 million American troops would be deployed on this front before the war came to an end.[115] The rapidly increasing American presence served as a counter for the large numbers of redeployed German forces.[114]

Allied counter-offensives

Italian regiments in 1918
Italian regiments in 1918

In July, Foch began the Second Battle of the Marne, a counter-offensive against the Marne salient which was eliminated by August. The Battle of Amiens began two days later, with Franco-British forces spearheaded by Australian and Canadian troops, along with 600 tanks and 800 aircraft.[116] Hindenburg named 8 August as the "Black Day of the German army."[117] The Italian 2nd Corps, commanded by General Alberico Albricci, also participated in the operations around Reims.[118] German manpower had been severely depleted after four years of war and its economy and society were under great internal strain. The Allies fielded 216 divisions against 197 German divisions.[119] The Hundred Days Offensive beginning in August proved the final straw and following this string of military defeats, German troops began to surrender in large numbers.[120] As the Allied forces advanced, Prince Maximilian of Baden was appointed as Chancellor of Germany in October to negotiate an armistice. Ludendorff was forced out and fled to Sweden.[120] The German retreat continued and the German Revolution put a new government in power. The Armistice of Compiègne was quickly signed, stopping hostilities on the Western Front on 11 November 1918, later known as Armistice Day.[121] The German Imperial Monarchy collapsed when General Groener, the successor to Ludendorff, backed the moderate Social Democratic Government under Friedrich Ebert, to forestall a revolution like those in Russia the previous year.[122]

Discover more about 1918 related topics

German spring offensive

German spring offensive

The German spring offensive, or Kaiserschlacht, also known as the Ludendorff offensive, was a series of German attacks along the Western Front during the First World War, beginning on 21 March 1918. Following American entry into the war in April 1917, the Germans decided that their only remaining chance of victory was to defeat the Allies before the United States could ship soldiers across the Atlantic and fully deploy its resources. The German Army had gained a temporary advantage in numbers as nearly 50 divisions had been freed by the Russian defeat and withdrawal from the war with the Treaty of Brest-Litovsk.

A7V

A7V

The A7V was a heavy tank introduced by Germany in 1918 during World War I. One hundred chassis were ordered in early 1917, ten to be finished as fighting vehicles with armoured bodies, and the remainder as Überlandwagen cargo carriers. The number to be armoured was later increased to 20. They were used in action from March to October 1918, and were the only tanks produced by Germany in World War I to be used in combat.

Roye, Somme

Roye, Somme

Roye is a commune in the Somme department in Hauts-de-France in northern France.

Operation Michael

Operation Michael

Operation Michael was a major German military offensive during the First World War that began the German Spring Offensive on 21 March 1918. It was launched from the Hindenburg Line, in the vicinity of Saint-Quentin, France. Its goal was to break through the Allied (Entente) lines and advance in a north-westerly direction to seize the Channel Ports, which supplied the British Expeditionary Force (BEF) and to drive the BEF into the sea. Two days later General Erich Ludendorff, the chief of the German General Staff, adjusted his plan and pushed for an offensive due west, along the whole of the British front north of the River Somme. This was designed to first separate the French and British Armies before continuing with the original concept of pushing the BEF into the sea. The offensive ended at Villers-Bretonneux, to the east of the Allied communications centre at Amiens, where the Allies managed to halt the German advance; the German Army had suffered many casualties and was unable to maintain supplies to the advancing troops.

Ferdinand Foch

Ferdinand Foch

Ferdinand Foch was a French general and military theorist who served as the Supreme Allied Commander during the First World War. An aggressive, even reckless commander at the First Marne, Flanders and Artois campaigns of 1914–1916, Foch became the Allied Commander-in-Chief in late March 1918 in the face of the all-out German spring offensive, which pushed the Allies back using fresh soldiers and new tactics that trenches could not withstand. He successfully coordinated the French, British and American efforts into a coherent whole, deftly handling his strategic reserves. He stopped the German offensive and launched a war-winning counterattack. In November 1918, Marshal Foch accepted the German cessation of hostilities and was present at the Armistice of 11 November 1918.

Battle of Cantigny

Battle of Cantigny

The Battle of Cantigny, fought May 28, 1918 was the first major American battle and offensive of World War I. The U.S. 1st Division, the most experienced of the five American divisions then in France and in reserve for the French Army near the village of Cantigny, was selected for the attack. The objective of the attack was both to reduce a small salient made by the German Army in the front lines but also to instill confidence among the French.

Hundred Days Offensive

Hundred Days Offensive

The Hundred Days Offensive was a series of massive Allied offensives that ended the First World War. Beginning with the Battle of Amiens on the Western Front, the Allies pushed the Imperial German Army back, undoing its gains from the German spring offensive.

Armistice of 11 November 1918

Armistice of 11 November 1918

The Armistice of 11 November 1918 was the armistice signed at Le Francport near Compiègne that ended fighting on land, sea, and air in World War I between the Entente and their last remaining opponent, Germany. Previous armistices had been agreed with Bulgaria, the Ottoman Empire and Austria-Hungary. It was concluded after the German government sent a message to American president Woodrow Wilson to negotiate terms on the basis of a recent speech of his and the earlier declared "Fourteen Points", which later became the basis of the German surrender at the Paris Peace Conference, which took place the following year.

Battle of Amiens (1918)

Battle of Amiens (1918)

The Battle of Amiens, also known as the Third Battle of Picardy, was the opening phase of the Allied offensive which began on 8 August 1918, later known as the Hundred Days Offensive, that ultimately led to the end of the First World War. Allied forces advanced over 11 kilometres (7 mi) on the first day, one of the greatest advances of the war, with Gen Henry Rawlinson's British Fourth Army playing the decisive role. The battle is also notable for its effects on both sides' morale and the large number of surrendering German forces. This led Erich Ludendorff to later describe the first day of the battle as "the black day of the German Army". Amiens was one of the first major battles involving armoured warfare.

II Army Corps (Italy)

II Army Corps (Italy)

The II Army Corps was a corps of the Royal Italian Army between 1877 and 1943.

Alberico Albricci

Alberico Albricci

Alberico Albricci was an Italian general who served in World War I, leading the 2nd Army Corps in France during the Second Battle of the Marne.

Prince Maximilian of Baden

Prince Maximilian of Baden

Maximilian, Margrave of Baden, also known as Max von Baden, was a German prince, general, and politician. He was heir presumptive to the throne of the Grand Duchy of Baden, and in October and November 1918 briefly served as the last chancellor of the German Empire and minister-president of Prussia. He sued for peace on Germany's behalf at the end of World War I based on U.S. President Woodrow Wilson's Fourteen Points, which included immediately transforming the government into a parliamentary system, by handing over the office of chancellor to SPD Chairman Friedrich Ebert and unilaterally proclaiming the abdication of Emperor Wilhelm II. Both events took place on 9 November 1918, the beginning of the Weimar Republic.

Aftermath

Military Casualties
Western Front 1914–1918[123][124][125][e]
Nationality Killed Wounded P.O.W.
France 1,300,000 c. 3,000,000 508,000
UK 512,600 1,528,500 223,600
Canada 56,400 149,700
USA 51,800 230,100 4,430
Australia 48,900 130,900
Belgium 38,200 44,700 10,200
New Zealand 12,900 34,800
India 6,670 15,750 1,090
Russia 4,542[f]
Italy 4,500[g] 7,500
South Africa 3,250 8,720 2,220
Portugal 1,690 13,750 6,680
Siam 19
Allies ~2,041,000 ~5,163,000
Germany 1,493,000 3,116,000 774,000
Austria-Hungary 779 13,113 5,403
Central Powers ~1,495,000 ~3,126,000 ~779,000
Grand Total 3,536,000 8,262,000

The war along the Western Front led the German government and its allies to sue for peace in spite of German success elsewhere. As a result, the terms of the peace were dictated by France, Britain and the United States, during the 1919 Paris Peace Conference. The result was the Treaty of Versailles, signed in June 1919 by a delegation of the new German government.[126] The terms of the treaty constrained Germany as an economic and military power. The Versailles treaty returned the border provinces of Alsace-Lorraine to France, thus limiting the coal required by German industry. The Saar, which formed the west bank of the Rhine, would be demilitarised and controlled by Britain and France, while the Kiel Canal opened to international traffic. The treaty also drastically reshaped Eastern Europe. It severely limited the German armed forces by restricting the size of the army to 100,000 and disallowing a navy or air force. The navy was sailed to Scapa Flow under the terms of surrender but was later scuttled as a reaction to the treaty.[127]

Casualties

The war in the trenches of the Western Front left tens of thousands of maimed soldiers and war widows. The unprecedented loss of life had a lasting effect on popular attitudes toward war, resulting later in an Allied reluctance to pursue an aggressive policy toward Adolf Hitler.[128] Belgium suffered 30,000 civilian dead and France 40,000 (including 3,000 merchant sailors).[129] The British lost 16,829 civilian dead, 1,260 civilians were killed in air and naval attacks, 908 civilians were killed at sea and there were 14,661 merchant marine deaths.[130][131] Another 62,000 Belgian, 107,000 British and 300,000 French civilians died due to war-related causes.[132]

Economic costs

Germany in 1919 was bankrupt, the people living in a state of semi-starvation and having no commerce with the remainder of the world. The Allies occupied the Rhine cities of Cologne, Koblenz and Mainz, with restoration dependent on payment of reparations. In Germany a Stab-in-the-back myth (Dolchstoßlegende) was propagated by Hindenburg, Ludendorff and other defeated generals, that the defeat was not the fault of the 'good core' of the army but due to certain left-wing groups within Germany who signed a disastrous armistice; this would later be exploited by nationalists and the Nazi party propaganda to excuse the overthrow of the Weimar Republic in 1930 and the imposition of the Nazi dictatorship after March 1933.[133]

France suffered more casualties relative to its population than any other great power and the industrial north-east of the country was devastated by the war. The provinces overrun by Germany had produced 40 percent of French coal and 58 percent of its steel output.[134] Once it was clear that Germany was going to be defeated, Ludendorff had ordered the destruction of the mines in France and Belgium.[135] His goal was to cripple the industries of Germany's main European rival. To prevent similar German attacks in the future, France later built a massive series of fortifications along the German border known as the Maginot Line.[136]

Discover more about Aftermath related topics

Aftermath of World War I

Aftermath of World War I

The aftermath of World War I saw cultural, economic, and social change across Eurasia, Africa, and even in areas outside those that were directly involved. Four empires collapsed due to the war, old countries were abolished, new ones were formed, boundaries were redrawn, international organizations were established, and many new and old ideologies took a firm hold in people's minds. World War I also had the effect of bringing political transformation to most of the principal parties involved in the conflict, transforming them into electoral democracies by bringing near-universal suffrage for the first time in history, as in Germany, Great Britain, and Turkey.

Treaty of Versailles

Treaty of Versailles

The Treaty of Versailles was a peace treaty signed on 28 June 1919. As the most important treaty of World War I, it ended the state of war between Germany and most of the Allied Powers. It was signed in the Palace of Versailles, exactly five years after the assassination of Archduke Franz Ferdinand, which led to the war. The other Central Powers on the German side signed separate treaties. The United States never ratified the Versailles treaty and made a separate peace treaty with Germany. Although the armistice of 11 November 1918 ended the actual fighting, it took six months of Allied negotiations at the Paris Peace Conference to conclude the peace treaty. Germany was not allowed to participate in the negotiations—it was forced to sign the final result.

Kiel Canal

Kiel Canal

The Kiel Canal is a 98 km (61 mi) long freshwater canal in the German state of Schleswig-Holstein. The canal was finished in 1895, but later widened, and links the North Sea at Brunsbüttel to the Baltic Sea at Kiel-Holtenau. An average of 250 NM (460 km) is saved by using the Kiel Canal instead of going around the Jutland Peninsula. This not only saves time but also avoids storm-prone seas and having to pass through the Danish straits.

Scapa Flow

Scapa Flow

Scapa Flow is a body of water in the Orkney Islands, Scotland, sheltered by the islands of Mainland, Graemsay, Burray, South Ronaldsay and Hoy. Its sheltered waters have played an important role in travel, trade and conflict throughout the centuries. Vikings anchored their longships in Scapa Flow more than a thousand years ago. It was the United Kingdom's chief naval base during the First and Second World Wars, but the facility was closed in 1956.

Scuttling of the German fleet at Scapa Flow

Scuttling of the German fleet at Scapa Flow

Shortly after the end of the First World War, the German Kaiserliche Marine was scuttled by its sailors while held off the harbor of the British Royal Navy base at Scapa Flow, in the Orkney Islands of Scotland. The High Seas Fleet was interned there under the terms of the Armistice while negotiations took place over the fate of the ships. Fearing that either the UK would seize the ships unilaterally or the German government at the time might reject the Treaty of Versailles and resume the war effort, Admiral Ludwig von Reuter decided to scuttle the fleet.

Adolf Hitler

Adolf Hitler

Adolf Hitler was an Austrian-born German politician who was the dictator of Germany from 1933 until his suicide in 1945. He rose to power as the leader of the Nazi Party, becoming the chancellor in 1933 and then taking the title of Führer und Reichskanzler in 1934. During his dictatorship, he initiated World War II in Europe by invading Poland on 1 September 1939. He was closely involved in military operations throughout the war and was central to the perpetration of the Holocaust: the genocide of about six million Jews and millions of other victims.

French war planning 1920–1940

French war planning 1920–1940

The Dyle Plan or Plan D was the plan of the Commander-in-Chief of the French Army, Général d'armée Maurice Gamelin, to defeat a German attempt to invade France through Belgium. The Dyle (Dijle) river is 86 km (53 mi) long, from Houtain-le-Val through Flemish Brabant and Antwerp; Gamelin intended French, British and Belgian troops to halt a German invasion force along the line of the river. The Franco-Belgian Accord of 1920 had co-ordinated communication and fortification efforts of both armies. After the German Remilitarization of the Rhineland on 7 March 1936, the Belgian government abrogated the accord and substituted a policy of strict neutrality, now that the German Army was on the German–Belgian border.

Stab-in-the-back myth

Stab-in-the-back myth

The stab-in-the-back myth was an antisemitic conspiracy theory that was widely believed and promulgated in Germany after 1918. It maintained that the Imperial German Army did not lose World War I on the battlefield, but was instead betrayed by certain citizens on the home front—especially Jews, revolutionary socialists who fomented strikes and labor unrest, and other republican politicians who had overthrown the House of Hohenzollern in the German Revolution of 1918–1919. Advocates of the myth denounced the German government leaders who had signed the Armistice of 11 November 1918 as the "November criminals".

Nazism

Nazism

Nazism, the common name in English for National Socialism, is the political ideology and practices associated with Adolf Hitler and the Nazi Party (NSDAP) in Nazi Germany. During Hitler's rise to power in the 1930s in Europe, it was frequently referred to as Hitlerism. It is placed on the far-right of the political spectrum, and is extensively referred to as an example of totalitarianism. The later related term "neo-Nazism" is applied to other far-right groups with similar ideas which formed after the Second World War.

Weimar Republic

Weimar Republic

The Weimar Republic, officially named the German Reich, was a historical period of Germany from 9 November 1918 to 23 March 1933, during which it was a constitutional federal republic for the first time in history; hence it is also referred to, and unofficially proclaimed itself, as the German Republic. The period's informal name is derived from the city of Weimar, which hosted the constituent assembly that established its government. In English, the republic was usually simply called "Germany", with "Weimar Republic" not commonly used until the 1930s.

Maginot Line

Maginot Line

The Maginot Line, named after the French Minister of War André Maginot, is a line of concrete fortifications, obstacles and weapon installations built by France in the 1930s to deter invasion by Germany and force them to move around the fortifications.

Source: "Western Front (World War I)", Wikipedia, Wikimedia Foundation, (2023, March 1st), https://en.wikipedia.org/wiki/Western_Front_(World_War_I).

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References

Notes

  1. ^ "General Brusilov, situated on the Austro-German border, of the General Staff, still managed to make available 4 special brigades to France, or 745 officers and 43,547 foot soldiers."[6]
  2. ^ "The losses for the two Russian brigades totaled 70 officers and 4,472 soldiers killed, wounded or missing in action."[6]
  3. ^ 424,000 German civilians died due to war-related causes, ~1,000 in air raids.[9]
  4. ^ A modern author uses the term only in the narrower sense of describing the war crimes committed by the Germans during this period.[21]
  5. ^ German casualties from "Reichsarchiv 1918". Appendix F additionally breaks down the German killed figures (per the Reichsarchiv) as: 829,400 killed in action; 300,000 died of wounds; 364,000 missing reclassified as dead.[124]
  6. ^ Including soldiers killed, wounded or missing
  7. ^ plus another 3,500 missing

Footnotes

  1. ^ a b ILO 1925, p. 29.
  2. ^ War Office 1922, p. 742.
  3. ^ Ayres 1919, p. 105.
  4. ^ Hosch 2010, p. 219.
  5. ^ Tucker, Wood & Murphy 1999.
  6. ^ a b Maurel 2001, §1.
  7. ^ Massimiliano 2015, p. 23-24.
  8. ^ Jones 2019, p. 137.
  9. ^ Grebler & Winkler 1940, p. 78.
  10. ^ Liddle 1997, pp. 45–58.
  11. ^ Edmonds 1991, pp. 361–363.
  12. ^ Stevenson 2005, pp. 44–45.
  13. ^ Hamilton & Herwig 2003, p. 159.
  14. ^ Griffith 2004, p. 9.
  15. ^ Griffiths 1986, pp. 22–24, 25–26.
  16. ^ Hamilton & Herwig 2003, p. 254.
  17. ^ Griffiths 2003, p. 30.
  18. ^ Griffiths 1986, pp. 29–30.
  19. ^ Smith, Audoin-Rouzeau & Becker 2003, p. 33.
  20. ^ Horne & Kramer 2001, pp. 1–608.
  21. ^ Zuckerman 2004, p. 23.
  22. ^ Terraine 2002, pp. 78–175.
  23. ^ Strachan 2001, pp. 242–262.
  24. ^ Griffiths 1986, pp. 31–37.
  25. ^ a b Kennedy 1989, pp. 265–6.
  26. ^ Barton, Doyle & Vandewalle 2005, p. 17.
  27. ^ Baldwin 1962, p. 27.
  28. ^ Strachan 2001, pp. 273–278.
  29. ^ Foley 2007, pp. 105–110.
  30. ^ Robinson & Beard 1930, pp. 324–325.
  31. ^ Fuller 1992, p. 165.
  32. ^ Neiberg 2008, p. 110.
  33. ^ Lyons 2000, p. 112.
  34. ^ Fuller 1992, pp. 166–7.
  35. ^ Richter 1994, p. 7.
  36. ^ Doughty 2005, pp. 148–151.
  37. ^ Fuller 1992, pp. 172–3.
  38. ^ Sheldon 2012, pp. 81–95.
  39. ^ Sheldon 2012, pp. 95–121.
  40. ^ Jones 2002, pp. 22–23.
  41. ^ Richter 1994, pp. 69–73, 88.
  42. ^ Richter 1994, pp. 182–183, 210–211.
  43. ^ Spick 2002, pp. 326–327.
  44. ^ Wise 1981, pp. 349–350.
  45. ^ Granatstein & Morton 2003, p. 40.
  46. ^ Smith, Audoin-Rouzeau & Becker 2003, pp. 79–80.
  47. ^ Herwig 1997, p. 165.
  48. ^ Lupfer 1981, pp. 1–36.
  49. ^ Campbell 1981, pp. 26–27.
  50. ^ Griffith 1994, pp. 155–156.
  51. ^ Bailey 2004, p. 245.
  52. ^ Samuels 1995, pp. 168–171.
  53. ^ Palazzo 2000, p. 66.
  54. ^ Hartesveldt 2005, p. 17.
  55. ^ Warner 2000, pp. 4–31.
  56. ^ Wiest 2005, p. xvii.
  57. ^ Lyons 2000, p. 141.
  58. ^ Knox 2007, p. 153.
  59. ^ Hull 2005, pp. 295–296.
  60. ^ Foley 2007, pp. 207–208.
  61. ^ Marshall 1964, pp. 236–7.
  62. ^ Campbell 1981, p. 40.
  63. ^ Lyons 2000, p. 143.
  64. ^ Martin 2001, pp. 28–83.
  65. ^ Jones & Hook 2007, pp. 23–24.
  66. ^ Foley 2007, p. 224.
  67. ^ Jackson 2001, p. 28.
  68. ^ Griffiths 1986, pp. 71–72.
  69. ^ Campbell 1981, p. 42.
  70. ^ Baldwin 1962, p. 79.
  71. ^ Rawson 2014, pp. 140–158.
  72. ^ Miles 1992, pp. 245–249.
  73. ^ Prior & Wilson 2005, pp. 280–281.
  74. ^ Watson 2008, p. 11.
  75. ^ Corkerry 2001, p. 88.
  76. ^ a b Herwig 1997, pp. 246–252.
  77. ^ Wynne 1976, p. 290.
  78. ^ Dockrill & French 1996, p. 68.
  79. ^ Marshall 1964, pp. 288–289.
  80. ^ Baldwin 1962, p. 99.
  81. ^ Neiberg 2004, p. 46.
  82. ^ Griffiths 1986, pp. 144–145.
  83. ^ a b Baldwin 1962, pp. 99–100.
  84. ^ Sheffield 2014, Chapter 7.
  85. ^ Campbell 1981, p. 71.
  86. ^ Hart 2005, pp. 11–13.
  87. ^ Cockfield 1999, pp. 91–114.
  88. ^ Uffindell 2015, p. 26.
  89. ^ Lyons 2000, p. 243.
  90. ^ Marshall 1964, p. 292.
  91. ^ Neiberg 2003, p. 53.
  92. ^ a b Baldwin 1962, pp. 101–102.
  93. ^ Griffiths 1986, p. 124.
  94. ^ Baldwin 1962, p. 144.
  95. ^ Bostyn 2002, p. 227.
  96. ^ Edmonds 1991, p. 87.
  97. ^ Sheldon 2007, pp. 35–36, 39.
  98. ^ Liddle 2013, p. 112.
  99. ^ Baldwin 1962, p. 103.
  100. ^ Sheffield 2002, p. 216.
  101. ^ Sheldon 2007, pp. vi, 316.
  102. ^ Miles 1991, pp. 13–15, 32–35.
  103. ^ Miles 1991, p. 88.
  104. ^ Miles 1991, pp. 176–248.
  105. ^ Herwig 1997, pp. 393–397, 400–401.
  106. ^ Baldwin 1962, pp. 139–140.
  107. ^ Baldwin 1962, p. 140.
  108. ^ Carlyon 2006, p. 543.
  109. ^ Murphy 2005, p. 69.
  110. ^ Baldwin 1962, pp. 140–141.
  111. ^ Carlyon 2006, pp. 544–545.
  112. ^ Marshall 1964, pp. 353–357.
  113. ^ Baldwin 1962, pp. 141–143.
  114. ^ a b Baldwin 1962, p. 146.
  115. ^ Tucker & Roberts 2005, p. 1254.
  116. ^ Ekins 2010, p. 24.
  117. ^ Griffiths 1986, pp. 155–156.
  118. ^ Edmonds 1994, pp. 2, 31, 242, 245–246.
  119. ^ Kennedy 1989, pp. 266–302.
  120. ^ a b Herwig 1997, pp. 426–428.
  121. ^ Griffiths 1986, p. 163.
  122. ^ Herwig 1997, p. 446.
  123. ^ Ellis 2001, p. 270.
  124. ^ a b Churchill 1938, p. 558.
  125. ^ Jones 2019, p. .
  126. ^ Carlyon 2006, pp. 743 & 760.
  127. ^ Massie 2004, p. 787.
  128. ^ Adamthwaite 1989, pp. 25–26.
  129. ^ Gray 1991, p. 292.
  130. ^ ASB 1922, p. 100.
  131. ^ Ellis 1993, p. 269.
  132. ^ Hersch 1927, pp. 47–61.
  133. ^ Herwig 1996, pp. 87–127.
  134. ^ Chickering & Förster 2000, p. 297.
  135. ^ Marshall 1964, p. 460.
  136. ^ Alexander 2003, p. 180.

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