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Battle of the St. Lawrence

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Battle of the St. Lawrence
Part of the Battle of the Atlantic
German submarine U-190.jpg
German submarine U-190 arrives in St. John's, Newfoundland in June 1945 after surrendering
DateMay 1942 – November 1944
Location
Result Canadian strategic victory[1]
Belligerents
 Canada
 Germany
Commanders and leaders
Percy W. Nelles
Leonard W. Murray
Karl Dönitz
Strength

 Royal Canadian Navy:

  • 14 frigates
  • 31 corvettes
  • 35 minesweepers
  • 4 armed yachts
  • 1 auxiliary ship

Royal Canadian Air Force:

  • 12 bomber-reconnaissance squadrons
  • 1 fighter squadron

 Royal Navy

  • 2 destroyers

Kriegsmarine:

Casualties and losses
23 merchant ships sunk
4 RCN ships sunk
340 killed
Some U-boats damaged and some crewmen killed,[2] All spies captured

The Battle of the St. Lawrence involved marine and anti-submarine actions throughout the lower St. Lawrence River and the entire Gulf of Saint Lawrence, Strait of Belle Isle, Anticosti Island and Cabot Strait from May–October 1942, September 1943, and again in October–November 1944. During this time, German U-boats sank over 20 merchant ships and four Canadian warships. There were several near-shore actions involving the drop of German spies, or the attempted pickup of escaping prisoners of war. Despite the 23 ships lost, this battle marked a strategic victory for Canadian forces as ultimately they managed to disrupt U-boat activity, protect Canadian and Allied convoys, and intercept all attempted shore operations. This marked the first time that a foreign power had inflicted casualties in Canadian inland waters since the US incursions in the War of 1812.[1]

In the interwar years, poor economic conditions and a sense of security, engendered by the proximity of the United States and the traditional protection of the Royal Navy, had resulted in the Royal Canadian Navy (RCN) being equipped with very few ships, especially for coastal defence.[3] Upgraded to six destroyers just before the war, Canadian naval deployment gave priority to the North Atlantic convoy routes. By the end of the war, the RCN had expanded to become the third largest allied naval power, with 400 vessels and 100,000 men and women.[4] The Royal Navy contributed two destroyers to the fight in October 1942 when attacks reached their peak.

Discover more about Battle of the St. Lawrence related topics

Strait of Belle Isle

Strait of Belle Isle

The Strait of Belle Isle is a waterway in eastern Canada that separates the Labrador Peninsula from the island of Newfoundland, in the province of Newfoundland and Labrador.

Anticosti Island

Anticosti Island

Anticosti Island is an island in the Minganie Regional County Municipality, in administrative region of Côte-Nord, the province of Quebec, Canada.

Cabot Strait

Cabot Strait

Cabot Strait is a strait in eastern Canada approximately 110 kilometres wide between Cape Ray, Newfoundland and Cape North, Cape Breton Island. It is the widest of the three outlets for the Gulf of Saint Lawrence into the Atlantic Ocean, the others being the Strait of Belle Isle and Strait of Canso. It is named for the italian explorer Giovanni Caboto.

U-boat

U-boat

U-boats were naval submarines operated by Germany, particularly in the First and Second World Wars. Although at times they were efficient fleet weapons against enemy naval warships, they were most effectively used in an economic-warfare role and enforcing a naval blockade against enemy shipping. The primary targets of the U-boat campaigns in both wars were the merchant convoys bringing supplies from Canada and other parts of the British Empire, and from the United States, to the United Kingdom and to the Soviet Union and the Allied territories in the Mediterranean. German submarines also targeted Brazilian merchant ships during both World Wars and, twice over, precipitated Brazil's decision to give up its neutral stance and declare war on Germany.

Allies of World War II

Allies of World War II

The Allies, formally referred to as the United Nations from 1942, were an international military coalition formed during the Second World War (1939–1945) to oppose the Axis powers, led by Nazi Germany, Imperial Japan, and Fascist Italy. Its principal members by the end of 1941 were the United Kingdom, United States, Soviet Union, and China.

Convoy

Convoy

A convoy is a group of vehicles, typically motor vehicles or ships, traveling together for mutual support and protection. Often, a convoy is organized with armed defensive support and can help maintain cohesion within a unit. It may also be used in a non-military sense, for example when driving through remote areas.

War of 1812

War of 1812

The War of 1812 was fought by the United States of America and its indigenous allies against the United Kingdom and its allies in British North America, with limited participation by Spain in Florida. It began when the United States declared war on 18 June 1812 and, although peace terms were agreed upon in the December 1814 Treaty of Ghent, did not officially end until the peace treaty was ratified by Congress on 17 February 1815.

Royal Navy

Royal Navy

The Royal Navy (RN) is the United Kingdom's naval warfare force. Although warships were used by English and Scottish kings from the early medieval period, the first major maritime engagements were fought in the Hundred Years' War against France. The modern Royal Navy traces its origins to the early 16th century; the oldest of the UK's armed services, it is consequently known as the Senior Service.

Royal Canadian Navy

Royal Canadian Navy

The Royal Canadian Navy is the naval force of Canada. The RCN is one of three environmental commands within the Canadian Armed Forces. As of 2021, the RCN operates 12 frigates, four attack submarines, 12 coastal defence vessels, eight patrol class training vessels, two offshore patrol vessels, and several auxiliary vessels. The RCN consists of 8,570 Regular Force and 5,100 Primary Reserve sailors, supported by 3,800 civilians. Vice-Admiral Angus Topshee is the current commander of the Royal Canadian Navy and chief of the Naval Staff.

Historical context

The Gulf of Saint Lawrence
The Gulf of Saint Lawrence

From the start of the war in 1939 until VE Day, several of Canada's Atlantic coast ports became important to the resupply effort for the United Kingdom and later for the Allied land offensive on the Western Front. Halifax and Sydney, Nova Scotia became the primary convoy assembly ports, with Halifax being assigned the fast or priority convoys (largely troops and essential material) with the more modern merchant ships, while Sydney was given slow convoys which conveyed bulkier material on older and more vulnerable merchant ships. Both ports were heavily fortified with shore radar emplacements, searchlight batteries, and extensive coastal artillery stations all manned by RCN and Canadian Army regular and reserve personnel. Military intelligence agents enforced strict blackouts throughout the areas and anti-torpedo nets were in place at the harbour entrances. Even though no landings of German personnel took place near these ports, there were frequent attacks by U-boats on convoys departing for Europe. Less extensively used, but no less important, was the port of Saint John which also saw matériel funnelled through the port, largely after the United States entered the war in December 1941. The Canadian Pacific Railway mainline from central Canada (which crossed the state of Maine) could be used to transport in aid of the war effort.

Although not crippling to the Canadian war effort, given the country's rail network to the east coast ports, but possibly more destructive to the morale of the Canadian public, was the Battle of the St. Lawrence, when U-boats began to attack domestic coastal shipping along Canada's east coast in the St. Lawrence River and Gulf of St. Lawrence from early 1942 through to the end of the shipping season in late 1944.

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Victory in Europe Day

Victory in Europe Day

Victory in Europe Day is the day celebrating the formal acceptance by the Allies of World War II of Germany's unconditional surrender of its armed forces on Tuesday, 8 May 1945, marking the official end of World War II in Europe in the Eastern Front, with the last shots fired on the 11th. Russia and some former Soviet countries celebrate on 9 May. Several countries observe public holidays on the day each year, also called Victory Over Fascism Day, Liberation Day or Victory Day. In the UK it is often abbreviated to VE Day, or V-E Day in the US, a term which existed as early as September 1944, in anticipation of victory.

United Kingdom

United Kingdom

The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Europe, off the north-western coast of the continental mainland. It comprises England, Scotland, Wales and Northern Ireland. The United Kingdom includes the island of Great Britain, the north-eastern part of the island of Ireland, and many smaller islands within the British Isles. Northern Ireland shares a land border with the Republic of Ireland; otherwise, the United Kingdom is surrounded by the Atlantic Ocean, the North Sea, the English Channel, the Celtic Sea and the Irish Sea. The total area of the United Kingdom is 242,495 square kilometres (93,628 sq mi), with an estimated 2023 population of over 68 million people.

Allies of World War II

Allies of World War II

The Allies, formally referred to as the United Nations from 1942, were an international military coalition formed during the Second World War (1939–1945) to oppose the Axis powers, led by Nazi Germany, Imperial Japan, and Fascist Italy. Its principal members by the end of 1941 were the United Kingdom, United States, Soviet Union, and China.

Sydney, Nova Scotia

Sydney, Nova Scotia

Sydney is a former city and urban community on the east coast of Cape Breton Island in Nova Scotia, Canada within the Cape Breton Regional Municipality. Sydney was founded in 1785 by the British, was incorporated as a city in 1904, and dissolved on 1 August 1995, when it was amalgamated into the regional municipality.

Searchlight

Searchlight

A searchlight is an apparatus that combines an extremely bright source with a mirrored parabolic reflector to project a powerful beam of light of approximately parallel rays in a particular direction. It is usually constructed so that it can be swiveled about.

Blackout (wartime)

Blackout (wartime)

A blackout during war, or in preparation for an expected war, is the practice of collectively minimizing outdoor light, including upwardly directed light. This was done in the 20th century to prevent crews of enemy aircraft from being able to identify their targets by sight, such as during the London Blitz of 1940. In coastal regions, a shoreside blackout of city lights also helped protect ships from being seen silhouetted against the artificial light by enemy submarines farther out at sea.

Europe

Europe

Europe is a continent comprising the westernmost peninsulas of Eurasia, located entirely in the Northern Hemisphere and mostly in the Eastern Hemisphere. It shares the continental landmass of Afro-Eurasia with both Africa and Asia. It is bordered by the Arctic Ocean to the north, the Atlantic Ocean to the west, the Mediterranean Sea to the south, and Asia to the east. Europe is commonly considered to be separated from Asia by the watershed of the Ural Mountains, the Ural River, the Caspian Sea, the Greater Caucasus, the Black Sea and the waterways of the Turkish Straits.

Saint John, New Brunswick

Saint John, New Brunswick

Saint John is a seaport city located on the Bay of Fundy in the province of New Brunswick, Canada. It is Canada's oldest incorporated city, established by royal charter on May 18, 1785, during the reign of George III. The port is Canada's third-largest port by tonnage with a cargo base that includes dry and liquid bulk, break bulk, containers, and cruise. The city was the most populous in New Brunswick until the 2016 census, when it was overtaken by Moncton. It is currently the second-largest city in the province, with a population of 69,895 over an area of 315.59 km2 (121.85 sq mi).

Canadian Pacific Railway

Canadian Pacific Railway

The Canadian Pacific Railway, also known simply as CPR or Canadian Pacific and formerly as CP Rail (1968–1996), is a Canadian Class I railway incorporated in 1881. The railway is owned by Canadian Pacific Railway Limited, which began operations as legal owner in a corporate restructuring in 2001.

Maine

Maine

Maine is the easternmost state in the New England region of the Northeastern United States. It borders New Hampshire to the west, the Gulf of Maine to the southeast, and the Canadian provinces of New Brunswick and Quebec to the northeast and northwest, respectively. The largest state by total area in New England, Maine is the 12th-smallest by area, the 9th-least populous, the 13th-least densely populated, and the most rural of the 50 U.S. states. It is also the northeasternmost among the contiguous United States, the northernmost state east of the Great Lakes, the only state whose name consists of a single syllable, and the only state to border exactly one other U.S. state. Approximately half the area of Maine lies on each side of the 45th parallel north in latitude. The most populous city in Maine is Portland, while its capital is Augusta.

St. Lawrence River

St. Lawrence River

The St. Lawrence River is a large river in the middle latitudes of North America. Its headwaters begin flowing from Lake Ontario in a roughly northeasterly direction, into the Gulf of St. Lawrence, connecting the North American Great Lakes to the North Atlantic Ocean, and forming the primary drainage outflow of the Great Lakes Basin. The river traverses the Canadian provinces of Ontario and Quebec, as well as the U.S. state of New York, and demarcates part of the international boundary between Canada and the United States. It also provides the foundation for the commercial St. Lawrence Seaway.

Gulf of St. Lawrence

Gulf of St. Lawrence

The Gulf of St. Lawrence is the outlet of the North American Great Lakes via the St. Lawrence River into the Atlantic Ocean. The gulf is a semi-enclosed sea, covering an area of about 226,000 square kilometres (87,000 sq mi) and containing about 34,500 cubic kilometres (8,300 cu mi) of water, at an average depth of 152 metres (500 ft).

Spring 1942

The Kriegsmarine had made no formal plans to attack merchant shipping in the St. Lawrence River and Gulf of St. Lawrence, despite its activities off the convoy assembly ports of Halifax and Sydney, Nova Scotia; therefore, early attacks in the Battle of the St. Lawrence were considered ad hoc and opportunistic.

The first attack was by U-553, which torpedoed and sank the British freighter Nicoya at the mouth of the St. Lawrence River several kilometres off Anticosti Island on 12 May 1942, followed by the Dutch freighter Leto in the same vicinity several hours later. U-553 departed the Gulf of St. Lawrence to return to its established patrol in the North Atlantic.[5]

Before these sinkings, the Gulf of St. Lawrence and St. Lawrence River had been guarded by only four RCN warships, a Bangor-class minesweeper, two Fairmile Marine Motor Launches and an armed yacht; a clearly inadequate force for the task. The RCN's response to the attacks was to deploy five Flower-class corvettes, but it remained inadequate even with these reinforcements.

The incident revealed that the RCN did not have the resources to deal with the situation and there were political repercussions in Canada with suggestions that RCN ships allocated to the Atlantic convoys should be recalled to protect Canadian territorial waters; however, the RCN's priority remained with the protection of convoys to Britain, the Soviet Union and North Africa.

Several RN escorts were attached to the RCN for some months during 1942, with convoys in the St. Lawrence River and Gulf of St. Lawrence being formed between RCN facilities at HMCS Chaleur II in Quebec City, HMCS Fort Ramsay in Gaspé, and HMCS Protector in Sydney. RCAF aircraft carried out operational patrols from RCAF stations such as Mont-Joli, Bagotville, Chatham, Mount Pleasant, Charlottetown, Summerside, Debert, Stanley and Sydney as well as various civilian fields, particularly in the Magdalen Islands.

Residents along the Gaspé coast and the St. Lawrence River and Gulf of St. Lawrence were startled at the sight of maritime warfare off their shores, with ships on fire and explosions rattling their communities, while bodies and debris floated ashore. The Canadian government's wartime secrecy saw censors forbid media reporting of incidents; so the only news came from local gossip. Blackouts were strictly enforced and army units were sent out on coastal patrols along roads and railway lines.

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Kriegsmarine

Kriegsmarine

The Kriegsmarine was the navy of Germany from 1935 to 1945. It superseded the Imperial German Navy of the German Empire (1871–1918) and the inter-war Reichsmarine (1919–1935) of the Weimar Republic. The Kriegsmarine was one of three official branches, along with the Heer and the Luftwaffe, of the Wehrmacht, the German armed forces from 1935 to 1945.

German submarine U-553

German submarine U-553

German submarine U-553 was a Type VIIC U-boat built for Nazi Germany's Kriegsmarine for service during World War II.

Anticosti Island

Anticosti Island

Anticosti Island is an island in the Minganie Regional County Municipality, in administrative region of Côte-Nord, the province of Quebec, Canada.

Bangor-class minesweeper

Bangor-class minesweeper

The Bangor-class minesweepers were a class of warships operated by the Royal Navy (RN), Royal Canadian Navy (RCN), Imperial Japanese Navy (IJN), and Royal Indian Navy (RIN) during the Second World War.

Minesweeper

Minesweeper

A minesweeper is a small warship designed to remove or detonate naval mines. Using various mechanisms intended to counter the threat posed by naval mines, minesweepers keep waterways clear for safe shipping.

Fairmile Marine

Fairmile Marine

Fairmile Marine was a British boat building company founded in 1939 by the car manufacturer Noel Macklin.

Motor Launch

Motor Launch

A Motor Launch (ML) is a small military vessel in Royal Navy service. It was designed for harbour defence and submarine chasing or for armed high-speed air-sea rescue. Some vessels for water police service are also known as motor launches.

Armed yacht

Armed yacht

An armed yacht was a yacht that was armed with weapons and was typically in the service of a navy. The word "yacht" was originally applied to small, fast and agile naval vessels suited to piracy and to employment by navies and coast guards against smugglers and pirates. Vessels of this type were adapted to racing by wealthy owners. The origin of civilian yachts as naval vessels, with their speed and maneuverability, made them useful for adaptation to their original function as patrol vessels. In the United States Navy armed yachts were typically private yachts expropriated for government use in times of war. Armed yachts served as patrol vessels during the Spanish–American War and the World Wars. In the latter conflicts, armed yachts were used as patrol vessels, convoy escorts, and in anti-submarine duties. In the United States, yachts were purchased from their owners with the owners given an option to repurchase their yacht at the close of hostilities.

Flower-class corvette

Flower-class corvette

The Flower-class corvette was a British class of 294 corvettes used during World War II by the Allied navies particularly as anti-submarine convoy escorts in the Battle of the Atlantic. Royal Navy ships of this class were named after flowers.

Corvette

Corvette

A corvette is a small warship. It is traditionally the smallest class of vessel considered to be a proper warship. The warship class above the corvette is that of the frigate, while the class below was historically that of the sloop-of-war.

Gaspé, Quebec

Gaspé, Quebec

Gaspé is a city at the tip of the Gaspé Peninsula in the Gaspésie–Îles-de-la-Madeleine region of eastern Quebec in Canada. Gaspé is located about 650 km (400 mi) northeast of Quebec City, and 350 km (220 mi) east of Rimouski. As of the 2021 Canadian Census, the city had a total population of 15,063.

HMCS Protector

HMCS Protector

Royal Canadian Navy base HMCS Protector, also known as the Point Edward Naval Base, was located next to Sydney Harbour, on Nova Scotia's Cape Breton Island. It was founded in 1940 and used by the navy during the Second World War. It was mainly used to provision, protect and repair the various merchant marine convoys to Quebec, Halifax, and the United Kingdom. It was a main combat zone during the Battle of the St. Lawrence and the more general Battle of the Atlantic. It continued to be utilized during the Cold War's early stages. It was decommissioned in 1964 and became the initial facility to house the Canadian Coast Guard College that same year. Currently, the Sydport Industrial Park utilizes the base's former piers and land.

Summer 1942

In July 1942, Captain Ernst Vogelsang piloted U-132 into the Gulf. On 6 July, within half an hour, he sank three ships from the twelve-ship convoy QS-15: the British registered Dinaric and Hainaut, and the Greek vessel Anastassios Pateras. Eventually depth charge runs by a ship, HMCS Drummondville and four Curtiss P-40 Warhawk from No. 130 Squadron RCAF damaged the U-boat's ballast pumps and resulted in the loss of 4 m3 (140 cu ft) of fuel and a few crewmen. This attack drove the submarine to the bottom where it hid for 12 hours. The submarine then rushed out of the Gulf for repairs.[1]

In late August, two U-boats made a joint raid on the St. Lawrence. U-517 sank nine ships and damaged another in a two-week period, escaping attacks by escort vessels each time and sinking the Flower-class corvette HMCS Charlottetown on 11 September. U-165 was less successful in attacking merchant shipping but it sank the armed yacht HMCS Raccoon and heavily damaged USS Laramie. Eastern Air Command positioned itself to better defend the remaining convoys by establishing a "Special Submarine Hunting Detachment" of No. 113 Squadron RCAF in Chatham, New Brunswick. They made their first U-boat attack on 9 September, when Pilot Officer R.S. Keetley dove on U-165, about 32 kilometres (20 mi) south of Anticosti Island. He did not do much damage to the submarine, but subsequent naval and air activity in the area frustrated the U-boat's efforts to attack other convoys.[1] The RCN requested additional forces from Western Local Escort Force, receiving two old Royal Navy destroyers with improved radar to combat the U-boat threat.[6]

Within 24 hours of 24 September, crews from 113 Squadron registered seven sightings and three attacks on U-517. Flying Officer M.J. Bélanger, an experienced 23-year-old Quebec native who came to the squadron from duty as a flying instructor, made two of the attacks. Neither sank the U-boat. Aircraft continued to harry the submarine as it cruised the Gulf. Bélanger was in the cockpit for another attack on U-517 on 29 September. Although his depth charges exploded all around the submarine's hull, it survived yet again. Still, Bélanger's attacks had badly hurt the submarine along with some sailors inside it. Later the young airman would be awarded the Distinguished Flying Cross, in large part for his determined attack of the U-boat.[1]

The continued attacks caused the St. Lawrence River and Gulf of St. Lawrence to be closed to all trans-Atlantic shipping, allowing only coastal trade. In practice, although this embargo strained the Canadian National Railway (CNR) system to Sydney and Halifax, it simplified the management of Atlantic convoys. The embargo lasted until early 1944.

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German submarine U-132 (1941)

German submarine U-132 (1941)

German submarine U-132 was a Type VIIC U-boat built for Nazi Germany's Kriegsmarine for service during World War II. She was laid down on 10 August 1940 by Vegesacker Werft, Bremen-Vegesack as yard number 11, launched on 10 April 1941 and commissioned on 29 May that year under Kapitänleutnant Ernst Vogelsang.

Curtiss P-40 Warhawk

Curtiss P-40 Warhawk

The Curtiss P-40 Warhawk is an American single-engined, single-seat, all-metal fighter and ground-attack aircraft that first flew in 1938. The P-40 design was a modification of the previous Curtiss P-36 Hawk which reduced development time and enabled a rapid entry into production and operational service. The Warhawk was used by most Allied powers during World War II, and remained in frontline service until the end of the war. It was the third most-produced American fighter of World War II, after the P-51 and P-47; by November 1944, when production of the P-40 ceased, 13,738 had been built, all at Curtiss-Wright Corporation's main production facilities in Buffalo, New York.

German submarine U-517

German submarine U-517

German submarine U-517 was a Type IXC U-boat of the Nazi Germany's Kriegsmarine during World War II.

HMCS Charlottetown (1941)

HMCS Charlottetown (1941)

HMCS Charlottetown was a Flower-class corvette that served the Royal Canadian Navy during the Second World War. Charlottetown's pennant number K244 is unique in that it was also used for HMCS Charlottetown, a River-class frigate.

German submarine U-165 (1941)

German submarine U-165 (1941)

German submarine U-165 was a Type IXC U-boat of Nazi Germany's Kriegsmarine built for service during World War II. The keel for this boat was laid down on 30 August 1940 at the Deutsche Schiff- und Maschinenbau AG, Bremen yard as yard number 704. She was launched on 15 August 1941 and commissioned on 3 February 1942 under the command of Fregattenkapitän Eberhard Hoffmann.

USS Laramie (AO-16)

USS Laramie (AO-16)

USS Laramie (AO-16) was a Kaweah-class fleet replenishment oiler in the United States Navy.

RCAF Eastern Air Command

RCAF Eastern Air Command

Eastern Air Command was the part of the Royal Canadian Air Force's Home War Establishment responsible for air operations on the Atlantic coast of Canada during the Second World War. It played a critical role in anti-submarine operations in Canadian and Newfoundland waters during the Battle of the Atlantic. Eastern Air Command also had several fighter squadrons and operational training units under its umbrella.

No. 113 Squadron RCAF

No. 113 Squadron RCAF

No. 113 Squadron was a Royal Canadian Air Force squadron that was active during the Second World War. It was originally formed as an Army Co-operation squadron and then a fighter squadron before being disbanded in 1939 and then reformed in 1942. It was primarily used in an anti-submarine role and was based on the east coast of Canada and Newfoundland. The squadron flew the Lockheed Hudson and Lockheed Ventura before disbanding on 10 August 1944.

Anticosti Island

Anticosti Island

Anticosti Island is an island in the Minganie Regional County Municipality, in administrative region of Côte-Nord, the province of Quebec, Canada.

Western Local Escort Force

Western Local Escort Force

Western Local Escort Force (WLEF) referred to the organization of anti-submarine escorts for World War II trade convoys from North American port cities to the Western Ocean Meeting Point near Newfoundland where ships of the Mid-Ocean Escort Force (MOEF) assumed responsibility for safely delivering the convoys to the British Isles.

Canadian National Railway

Canadian National Railway

The Canadian National Railway Company is a Canadian Class I freight railway headquartered in Montreal, Quebec, which serves Canada and the Midwestern and Southern United States.

Convoy

Convoy

A convoy is a group of vehicles, typically motor vehicles or ships, traveling together for mutual support and protection. Often, a convoy is organized with armed defensive support and can help maintain cohesion within a unit. It may also be used in a non-military sense, for example when driving through remote areas.

Fall 1942

In September U-91 attacked Convoy ON 127 along with a number of other submarines and chased them across the Atlantic all the way to the gulf. The submarine sustained minor damage from the warships but managed to sink HMCS Ottawa by firing two torpedoes at it.

In October, the Newfoundland Railway passenger ferry SS Caribou was torpedoed by U-69, in the Cabot Strait, between Sydney, Nova Scotia and Port aux Basques, Newfoundland, with heavy loss of life.[7] U-69 escaped a counterattack by the Bangor-class minesweeper HMCS Grandmère.[8] In November, U-518 sank two iron ore freighters and damaged another at Bell Island in Conception Bay, Newfoundland, en route to a patrol off the Gaspé Peninsula where, despite an attack by an RCAF patrol aircraft, it successfully landed a spy, Werner von Janowski at New Carlisle, Quebec; he was captured at the New Carlisle railway station shortly after landing on the beach.

On 21 October U-43 moved into the entrance of the river and encountered widespread RCN patrols. The submarine's captain, Hans-Joachim Schwantke, attempted to attack convoy SQ-43 off Gaspé, but was spotted and repulsed by the convoy's escorts. It was stated that six depth charges from the Bangor-class minesweeper HMCS Gananoque knocked out the U-boat's lights, blew the battery circuit breaker and activated a torpedo in one of the sub's stern tubes. Captain Schwantke pushed his sub down to 130 metres (430 ft) to avoid what he thought was a co-ordinated attack. The submarine was damaged but escaped the river.

In November, U-183 was ordered in but turned away because of oppressive Canadian patrols that prevented entry.

U-boat losses experienced by the Kriegsmarine during 1942 following the entry of the United States Navy into the Battle of the Atlantic, coupled with declining German shipbuilding capability to replace battle losses, saw the U-boat fleet redeployed to the primary Atlantic convoy routes to disrupt the Allied war resupply effort; this effectively saw enemy submarines withdrawn from the St. Lawrence River and Gulf of St. Lawrence by the end of 1942.

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German submarine U-91 (1941)

German submarine U-91 (1941)

German submarine U-91 was a Type VIIC U-boat of Nazi Germany's Kriegsmarine during World War II.

Convoy ON 127

Convoy ON 127

Convoy ON 127 was a trade convoy of merchant ships during the second World War. It was the 127th of the numbered series of ON convoys Outbound from the British Isles to North America and the only North Atlantic trade convoy of 1942 or 1943 where all U-boats deployed against the convoy launched torpedoes. The ships departed Liverpool on 4 September 1942 and were met at noon on 5 September by the Royal Canadian Navy Mid-Ocean Escort Force Group C-4 consisting of the Canadian River-class destroyer Ottawa and the Town-class destroyer St. Croix with the Flower-class corvettes Amherst, Arvida, Sherbrooke, and Celandine. St. Croix's commanding officer, acting Lieutenant Commander A. H. "Dobby" Dobson RCNR, was the senior officer of the escort group. The Canadian ships carried type 286 meter-wavelength radar but none of their sets were operational. Celandine carried Type 271 centimeter-wavelength radar. None of the ships carried HF/DF high-frequency direction finding sets.

German submarine U-69 (1940)

German submarine U-69 (1940)

German submarine U-69 was the first Type VIIC U-boat of the German Navy (Kriegsmarine) during World War II. This meant that compared to previous U-boats, she could travel further afield for longer, with a payload of fourteen torpedoes, an 8.8 cm (3.5 in) deck gun for smaller vessels and a flak gun for use against aircraft. U-69 was very successful, sinking over 72,000 gross register tons (GRT) of Allied shipping in a career lasting two years, making her one of the longest surviving, continuously serving, U-boats. Her most notable attack was on the civilian ferry SS Caribou, which sank off the coast of Newfoundland in October 1942, killing 137 men, women and children. She was rammed and sunk by HMS Fame on 17 February 1943.

Cabot Strait

Cabot Strait

Cabot Strait is a strait in eastern Canada approximately 110 kilometres wide between Cape Ray, Newfoundland and Cape North, Cape Breton Island. It is the widest of the three outlets for the Gulf of Saint Lawrence into the Atlantic Ocean, the others being the Strait of Belle Isle and Strait of Canso. It is named for the italian explorer Giovanni Caboto.

Channel-Port aux Basques

Channel-Port aux Basques

Channel-Port aux Basques is a town at the extreme southwestern tip of Newfoundland fronting on the western end of the Cabot Strait. A Marine Atlantic ferry terminal is located in the town which is the primary entry point onto the island of Newfoundland and the western terminus of the Newfoundland and Labrador Route 1 in the province. The town was incorporated in 1945 and its population in the 2021 census was 3,547.

German submarine U-518

German submarine U-518

German submarine U-518 was a Type IXC U-boat of the Nazi Germany's Kriegsmarine during World War II. She saw considerable success from her launch on 11 February 1942 until she was sunk on 22 April 1945. The U-boat was laid down at the Deutsche Werft in Hamburg as yard number 314 on 12 June 1941, and commissioned on 25 April 1942 with Fregattenkapitän Hans-Günther Brachmann in command. He was replaced on 19 August 1942 by Kapitänleutnant Friedrich-Wilhelm Wissmann. She sank nine ships and damaged three more in seven active patrols. U-518 had a crew of 56, and was by then commanded by Oberleutnant zur See Hans-Werner Offermann from 13 January 1944.

Bell Island (Newfoundland and Labrador)

Bell Island (Newfoundland and Labrador)

Bell Island is an island that is part of Newfoundland and Labrador, Canada's easternmost province. With an area of 34 km2, it is by far the largest island in Conception Bay, a large bay in the southeast of the island of Newfoundland. The provincial capital of St. John's is less than 20 km to the east.

Conception Bay

Conception Bay

Conception Bay (CB) is a bay on the southeast coast of Newfoundland, Canada.

Gaspé Peninsula

Gaspé Peninsula

The Gaspé Peninsula, also known as Gaspesia, is a peninsula along the south shore of the Saint Lawrence River that extends from the Matapedia Valley in Quebec, Canada, into the Gulf of Saint Lawrence. It is separated from New Brunswick on its southern side by Chaleur Bay and the Restigouche River. The name Gaspé comes from the Miꞌkmaq word gespe'g, meaning "end", referring to the end of the land.

New Carlisle, Quebec

New Carlisle, Quebec

New Carlisle, Quebec is a town in the Gaspésie–Îles-de-la-Madeleine region of Quebec, Canada. It best known as the boyhood home of René Lévesque although he was born in Campbellton, New Brunswick. Its population is approximately 1,388, most of which anglophone but many of which is francophone. New Carlisle is located on the Baie des Chaleurs.

German submarine U-43 (1939)

German submarine U-43 (1939)

German submarine U-43 was a Type IXA U-boat of Nazi Germany's Kriegsmarine during World War II. The keel for U-43 was laid down in August 1938 at Bremen; she was launched in May 1939 and commissioned in August.

Gaspé, Quebec

Gaspé, Quebec

Gaspé is a city at the tip of the Gaspé Peninsula in the Gaspésie–Îles-de-la-Madeleine region of eastern Quebec in Canada. Gaspé is located about 650 km (400 mi) northeast of Quebec City, and 350 km (220 mi) east of Rimouski. As of the 2021 Canadian Census, the city had a total population of 15,063.

1943

Canadian military intelligence and the Royal Canadian Mounted Police (RCMP) intercepted mail addressed to several Kriegsmarine officers (including Otto Kretschmer) imprisoned at the Camp 30 prisoner of war camp at Bowmanville, Ontario in early 1943. The correspondence detailed an escape plan in which the prisoners were to tunnel out of the camp and make their way (using currency and false documents provided for them) through eastern Ontario and across Quebec to the northeastern tip of New Brunswick off the Pointe de Maisonnette lighthouse where the escapees would be retrieved by a U-boat.

Canadian authorities did not tip off the POWs and detected signs of tunnel digging at Camp 30. All prisoners except one were arrested at the time of their escape attempt; the sole inmate who managed to escape travelled all the way to Pointe de Maisonette undetected, likely travelling onboard Canadian National Railway passenger trains to the Bathurst area. This POW was apprehended by military police and RCMP on the beach in front of the lighthouse on the night of the planned U-boat extraction.

The RCN provided a U-boat counteroffensive force (codenamed "Operation Pointe Maisonnette") that was led by HMCS Rimouski, which was outfitted with an experimental version of diffused lighting camouflage for the operation.

The task force led by Rimouski waited in Caraquet Harbour, obscured by Caraquet Island, the night of 26–27 September 1943 and detected the presence of U-536 off Pointe de Maisonnette while shore authorities arrested the POW escapee.

U-536 managed to elude the RCN task force by diving just as the surface warships began attacking with depth charges; the submarine was able to escape the Gulf of St. Lawrence without making the extraction.

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Royal Canadian Mounted Police

Royal Canadian Mounted Police

The Royal Canadian Mounted Police, commonly known in English as the Mounties is the federal and national police service of Canada. As police services are the constitutional responsibility of provinces and territories of Canada, the RCMP's primary responsibility is the enforcement of federal criminal law, and sworn members of the RCMP have jurisdiction as a peace officer in all provinces and territories of Canada. However, the service also provides police services under contract to eight of Canada's provinces, all three of Canada's territories, more than 150 municipalities, and 600 Indigenous communities. In addition to enforcing federal legislation and delivering local police services under contract, the RCMP is responsible for border integrity; overseeing Canadian peacekeeping missions involving police; managing the Canadian Firearms Program, which licenses and registers firearms and their owners; and the Canadian Police College, which provides police training to Canadian and international police services.

Otto Kretschmer

Otto Kretschmer

Otto Kretschmer was a German naval officer and submariner in World War II and the Cold War.

Prisoner of war

Prisoner of war

A prisoner of war (POW) is a person who is held captive by a belligerent power during or immediately after an armed conflict. The earliest recorded usage of the phrase "prisoner of war" dates back to 1610.

New Brunswick

New Brunswick

New Brunswick is one of the thirteen provinces and territories of Canada. It is one of the three Maritime provinces and one of the four Atlantic provinces. It is the only province with both English and French as its official languages.

Canadian National Railway

Canadian National Railway

The Canadian National Railway Company is a Canadian Class I freight railway headquartered in Montreal, Quebec, which serves Canada and the Midwestern and Southern United States.

Bathurst, New Brunswick

Bathurst, New Brunswick

Bathurst is the largest City in Northern New Brunswick with a population of 12,157 and the 4th largest metropolitan Area in New Brunswick as defined by Census Canada with a population of 31,387 as of 2021. The City of Bathurst overlooks Nepisiguit Bay, part of Chaleur Bay and is at the estuary of the Nepisiguit River.

Diffused lighting camouflage

Diffused lighting camouflage

Diffused lighting camouflage was a form of active camouflage using counter-illumination to enable a ship to match its background, the night sky, that was tested by the Royal Canadian Navy on corvettes during World War II. The principle was discovered by a Canadian professor, Edmund Godfrey Burr, in 1940. It attracted interest because it could help to hide ships from submarines in the Battle of the Atlantic, and the research project began early in 1941. The Royal Navy and the US Navy carried out further equipment development and trials between 1941 and 1943.

German submarine U-536

German submarine U-536

German submarine U-536 was a Type IXC U-boat of Nazi Germany's Kriegsmarine during World War II.

1944

In 1943, the RCAF had begun to successfully harass U-boat operations in Canadian coastal waters and the RCN had grown in numbers and effectiveness to allow more resources to be dedicated to anti-submarine warfare operations in territorial waters. By early 1944, the shipping lanes in the Gulf of St. Lawrence and St. Lawrence River were reopened to domestic and war-related convoys operating primarily from Quebec City to Sydney.

Late 1944 saw a resurgence of U-boat activity in the St. Lawrence River and Gulf of St. Lawrence. German submarines were being equipped with the snorkel, a telescopic engine ventilation system that permitted continuous underwater operation without surfacing.

U-1223 entered the Gulf of St. Lawrence undetected in early October and is credited with seriously damaging the River-class frigate HMCS Magog on 14 October and sinking the Canadian freighter SS Fort Thompson on 2 November.[9] Three weeks later, U-1228 attacked and sank the Flower-class corvette HMCS Shawinigan, a few kilometres off of Channel/Port aux Basque on the night of 24–25 November, with the loss of all 91 crew members, including former Toronto Maple Leafs hockey player Dudley "Red" Garrett.[10] Authorities only realized that it sank when Caribou's replacement ferry, SS Burgeo, sailed into North Sydney without Shawinigan on 26 November, after it had tried numerous times to make contact by radiophone earlier that day.[10] Wreckage was discovered on 27 November, and six crewmen's bodies were recovered.[10] It was the worst case of military deaths in Canadian territory during the war.[10]

These two German attacks marked the end of the Battle of the St. Lawrence. In May 1945, following Germany's surrender, U-889 and U-190 surrendered to the RCN at Shelburne, Nova Scotia and Bay Bulls, Newfoundland respectively.

After the war, it was shown that the mingling of fresh and salt waters in the region (the world's largest estuary), plus temperature variations and sea ice, disrupted RCN anti-submarine operations and reduced the effectiveness of shipboard sonar systems that were designed to detect submarines. Fog and other weather conditions in the St. Lawrence River and Gulf of St. Lawrence also conspired to hamper RCAF patrols.

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Submarine snorkel

Submarine snorkel

A submarine snorkel is a device which allows a submarine to operate submerged while still taking in air from above the surface. British Royal Navy personnel often refer to it as the snort. A concept devised by Dutch engineers, it was widely used on German U-boats during the last year of World War II and known to them as a Schnorchel.

River-class frigate

River-class frigate

The River class was a class of 151 frigates launched between 1941 and 1944 for use as anti-submarine convoy escorts in the North Atlantic. The majority served with the Royal Navy and Royal Canadian Navy (RCN), with some serving in the other Allied navies: the Royal Australian Navy (RAN), the Free French Naval Forces, the Royal Netherlands Navy and, post-war, the South African Navy.

Frigate

Frigate

A frigate is a type of warship. In different eras, the roles and capabilities of ships classified as frigates have varied somewhat.

HMCS Magog (K673)

HMCS Magog (K673)

HMCS Magog was a River-class frigate that served in the Royal Canadian Navy (RCN) during the Second World War. She was used primarily as a convoy escort. On 14 October 1944, she was torpedoed by U-1223. She survived the attack, was towed to port and declared a constructive total loss. Magog was named for the town of Magog, Quebec.

HMCS Shawinigan (K136)

HMCS Shawinigan (K136)

HMCS Shawinigan was a Flower-class corvette that served with the Royal Canadian Navy during the Second World War. She served primarily in the Battle of the Atlantic protecting convoys. She was sunk in 1944. She was named for Shawinigan, Quebec.

Toronto Maple Leafs

Toronto Maple Leafs

The Toronto Maple Leafs are a professional ice hockey team based in Toronto. They compete in the National Hockey League (NHL) as a member of the Atlantic Division in the Eastern Conference. The club is owned by Maple Leaf Sports & Entertainment, a company that owns several professional sports teams in the city. The Maple Leafs' broadcasting rights are split between BCE Inc. and Rogers Communications. For their first 14 seasons, the club played their home games at the Mutual Street Arena, before moving to Maple Leaf Gardens in 1931. The Maple Leafs moved to their present home, Scotiabank Arena, in February 1999.

German submarine U-889

German submarine U-889

German submarine U-889 was a Type IXC/40 U-boat of Nazi Germany's Kriegsmarine during World War II.

German submarine U-190

German submarine U-190

German submarine U-190 was a Type IXC/40 U-boat of Nazi Germany's Kriegsmarine built for service during World War II.

Shelburne, Nova Scotia

Shelburne, Nova Scotia

Shelburne is a town located in southwestern Nova Scotia, Canada.

Bay Bulls, Newfoundland and Labrador

Bay Bulls, Newfoundland and Labrador

Bay Bulls is a small fishing town in the province of Newfoundland and Labrador, Canada.

Estuary

Estuary

An estuary is a partially enclosed coastal body of brackish water with one or more rivers or streams flowing into it, and with a free connection to the open sea. Estuaries form a transition zone between river environments and maritime environments and are an example of an ecotone. Estuaries are subject both to marine influences such as tides, waves, and the influx of saline water, and to fluvial influences such as flows of freshwater and sediment. The mixing of seawater and freshwater provides high levels of nutrients both in the water column and in sediment, making estuaries among the most productive natural habitats in the world.

Sonar

Sonar

Sonar is a technique that uses sound propagation to navigate, measure distances (ranging), communicate with or detect objects on or under the surface of the water, such as other vessels.

Order of battle

Canada

Canadian Army

Royal Canadian Navy[11]

Frigates

Corvettes

Minesweepers

Motor Launches

Royal Canadian Air Force

United Kingdom

Royal Air Force

Germany

Kriegsmarine

U-boats

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Canadian Army

Canadian Army

The Canadian Army is the command responsible for the operational readiness of the conventional ground forces of the Canadian Armed Forces. It maintains regular forces units at bases across Canada, and is also responsible for the Army Reserve, the largest component of the Primary Reserve. The Army is headed by the concurrently held Commander of the Canadian Army and Chief of the Army Staff, who is subordinate to the Chief of the Defence Staff. The Army is also supported by 3,000 civilian employees from the civil service.

HMCS Antigonish

HMCS Antigonish

HMCS Antigonish was a River-class frigate that served in the Royal Canadian Navy from 1944–1946 and as a Prestonian-class frigate from 1957–1966. She is named for Antigonish, Nova Scotia. Her photo is featured on the cover of the 1994 album Frigate by the band April Wine.

HMCS Levis (K400)

HMCS Levis (K400)

HMCS Lévis was a River-class frigate that served with the Royal Canadian Navy during the Second World War. She served primarily as a convoy escort in the Battle of the St. Lawrence and the Battle of the Atlantic. She was the second ship to bear the name of Lévis, the first being a Flower-class corvette that had been sunk earlier in the war. She was named for Lévis, Quebec.

HMCS Magog (K673)

HMCS Magog (K673)

HMCS Magog was a River-class frigate that served in the Royal Canadian Navy (RCN) during the Second World War. She was used primarily as a convoy escort. On 14 October 1944, she was torpedoed by U-1223. She survived the attack, was towed to port and declared a constructive total loss. Magog was named for the town of Magog, Quebec.

HMCS Springhill (K323)

HMCS Springhill (K323)

HMCS Springhill was a River-class frigate that served with the Royal Canadian Navy during the Second World War. She served primarily as a convoy escort in the Battle of the Atlantic, mainly in the Battle of the St. Lawrence. She was named for Springhill, Nova Scotia.

HMCS Ste. Therese (K366)

HMCS Ste. Therese (K366)

HMCS Ste. Therese was a River-class frigate that served with the Royal Canadian Navy during the Second World War. She served primarily as a convoy escort in the Battle of the Atlantic. She was named for Sainte-Thérèse-de-Gaspé, Quebec. After the war she was converted to a Prestonian-class frigate and served until 1967.

HMCS Stettler (K681)

HMCS Stettler (K681)

HMCS Stettler was a River-class frigate that served with the Royal Canadian Navy during the Second World War. She served primarily as a convoy escort in the Battle of the Atlantic. She was named for Stettler, Alberta. After the war she was converted to a Prestonian-class frigate and served until 1966.

HMCS Agassiz

HMCS Agassiz

HMCS Agassiz was a Flower-class corvette of the Royal Canadian Navy. Named after the community of Agassiz, British Columbia, the ship was constructed by Burrard Dry Dock Co. Ltd. in North Vancouver, British Columbia and was launched on 15 August 1940. The corvette was commissioned on 23 January 1941 in Vancouver, British Columbia. The Flower class were initially designed for coastal service during the Second World War, but due to the demands of the Battle of the Atlantic, Agassiz was used primarily as an ocean escort for convoys crossing the Atlantic Ocean in engagements with German submarines. Following the war, the corvette was sold for scrap.

HMCS Amherst

HMCS Amherst

HMCS Amherst was a Flower-class corvette of the Royal Canadian Navy. She served primarily in the Battle of the Atlantic on convoy protection duty during the Second World War. She was named for Amherst, Nova Scotia. The ship was laid down at Saint John Dry Dock and Shipbuilding Co. Ltd. in Saint John, New Brunswick, on 23 May 1940 and launched on 3 December later that year. Amherst was commissioned on 5 August 1941 and served in the Battle of the Atlantic and Battle of the St. Lawrence, earning battle honours for both actions. After the war, the ship was decommissioned and sold to Venezuelan Navy in 1945 and renamed Carabobo. However, while en route to Venezuela, the ship was wrecked in the Gulf of St. Lawrence that same year.

HMCS Arrowhead

HMCS Arrowhead

HMCS Arrowhead was a Flower-class corvette that was originally commissioned by the Royal Navy but served primarily with the Royal Canadian Navy (RCN) during the Second World War. She fought primarily in the Battle of the Atlantic as a convoy escort. She was named for sagittaria, which is an aquatic water plant that is sometimes known as arrowhead.

HMCS Brandon

HMCS Brandon

Several Canadian naval units have been named HMCS Brandon.HMCS Brandon (K149) (I), a Flower-class corvette that served in the Royal Canadian Navy during the Battle of the Atlantic. HMCS Brandon (MM 710) (II), a Kingston-class coastal defence vessel in the Royal Canadian Navy, commissioned in 1999.

HMCS Brantford

HMCS Brantford

HMCS Brantford was a Flower-class corvette that served in the Royal Canadian Navy during the Second World War. She served primarily as a convoy escort in the Battle of the Atlantic. She was named for Brantford, Ontario.

Aftermath

In 1999, 55 years after the battle, the Governor General of Canada unveiled a monument to commemorate the 55th anniversary of the battle. The monument was erected in Halifax, and has the names of all the sailors that were lost in the battle. The battle is remembered in other ways, too. For example, in 2005, Veterans Affairs published a book on all the events in the battle. This book and others can educate and inform the population about the role Canadians played in the Battle of the Saint Lawrence.[1]

Popular culture

  • In the Canadian TV series Bomb Girls, the battle is mentioned several times in season 2 and seen in the newspapers. It is also mentioned and has footage shown in the TV movie Bomb Girls: Facing the Enemy.

Source: "Battle of the St. Lawrence", Wikipedia, Wikimedia Foundation, (2022, October 20th), https://en.wikipedia.org/wiki/Battle_of_the_St._Lawrence.

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References and further reading
  1. ^ a b c d e f The battle of the Gulf of St. Lawrence. Veterans Affairs Canada. 2005. ISBN 0-662-69036-2.
  2. ^ Granatstein & Oliver (2011), p. 32.
  3. ^ Jackson, Ashley (2006). The British Empire and the Second World War. London: Hambledon Continuum. p. 64. ISBN 1-85285-417-0.
  4. ^ Mosseray, Fabrice (1995–2007). "The Battle of the St. Lawrence". uboat.net. Guðmundur Helgason. Retrieved 14 November 2007.
  5. ^ Blair (1996), p. 571.
  6. ^ Sarty (2012), p. 153.
  7. ^ Tennyson & Sarty (2000), pp. 274–275.
  8. ^ Rohwer & Hummelchen (1992), p. 161.
  9. ^ Runyan & Copes (1994), pp. 204–206.
  10. ^ a b c d Sarty (2012), pp. 284–287.
  11. ^ Veterans Affairs Canada (2005). The Battle of the Gulf of St. Lawrence. Ottawa: Her Majesty the Queen in Right of Canada represented by the Minister of Veterans Affairs.

Bibliography

External links

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