HMAS Warramunga (I44)

The Tribal class, or Afridi class, were a class of destroyers built for the Royal Navy, Royal Canadian Navy and Royal Australian Navy that saw service in World War II. Originally conceived during design studies for a light fleet cruiser, the Tribals evolved into fast, powerful destroyers, with greater emphasis on guns over torpedoes than previous destroyers, in response to new designs by Japan, Italy, and Germany. The Tribals were well admired by their crews and the public when they were in service due to their power, often becoming symbols of prestige while in service.

Length overall is the maximum length of a vessel's hull measured parallel to the waterline. This length is important while docking the ship. It is the most commonly used way of expressing the size of a ship, and is also used for calculating the cost of a marina berth.

The 2-pounder gun, officially the QF 2-pounder and universally known as the pom-pom, was a 40 mm (1.6 in) British autocannon, used as an anti-aircraft gun by the Royal Navy. The name came from the sound that the original models make when firing. This QF 2-pounder was not the same gun as the Ordnance QF 2-pounder, used by the British Army as an anti-tank gun and a tank gun, although they both fired 2 lb (0.91 kg), 40 mm (1.6 in) projectiles.

A depth charge is an anti-submarine warfare (ASW) weapon. It is intended to destroy a submarine by being dropped into the water nearby and detonating, subjecting the target to a powerful and destructive hydraulic shock. Most depth charges use high explosive charges and a fuze set to detonate the charge, typically at a specific depth. Depth charges can be dropped by ships, patrol aircraft, and helicopters.

A cutter is a name for various types of watercraft. It can apply to the rig of a sailing vessel, to a governmental enforcement agency vessel, to a type of ship's boat which can be used under sail or oars, or, historically, to a type of fast-sailing vessel introduced in the 18th century, some of which were used as small warships.

Squid was a British World War II ship-mounted anti-submarine weapon. It consisted of a three-barrelled mortar which launched depth charges. It replaced the Hedgehog system, and was in turn replaced by the Limbo system.

The Cockatoo Island Dockyard was a major dockyard in Sydney, Australia, based on Cockatoo Island. The dockyard was established in 1857 to maintain Royal Navy warships. It later built and repaired military and battle ships, and played a key role in sustaining the Royal Australian Navy. The dockyard was closed in 1991, and its remnants are heritage listed as the Cockatoo Island Industrial Conservation Area.

The Minister for Defence is the principal minister responsible for the organisation, implementation, and formulation of government policy in defence and military matters for the Australian Government. The individual who holds this office directs the government’s approach to such matters through the Australian Defence Organisation and, by extension, the Department of Defence and the Australian Defence Force. The office of the Minister for Defence, like all Cabinet positions, is not referenced in the Constitution of Australia but rather exists through convention and the prerogative of the Governor-General to appoint ministers of state.

Queensland is a state situated in northeastern Australia and is the second-largest and third-most-populous of the Australian states. It is bordered by the Northern Territory, South Australia, and New South Wales to the west, southwest, and south respectively. To the east, Queensland is bordered by the Coral Sea and the Pacific Ocean; to its north is the Torres Strait, separating the Australian mainland from Papua New Guinea. With an area of 1,852,642 square kilometres (715,309 sq mi), Queensland is the world's sixth-largest sub-national entity; it is larger than all but 15 countries. Due to its size, Queensland's geographical features and climates are diverse, including tropical rainforests, rivers, coral reefs, mountain ranges and sandy beaches in its tropical and sub-tropical coastal regions, as well as deserts and savanna in the semi-arid and desert climatic regions of its interior.

New Guinea is the world's second-largest island, with an area of 785,753 km2 (303,381 sq mi). Located in Oceania in the southwestern Pacific Ocean, the island is separated from Australia by the 150-kilometre wide Torres Strait, though both landmasses lie on the same continental shelf. Numerous smaller islands are located to the west and east.

Operation Chronicle was the Allied invasion of Woodlark and Kiriwina Islands, in the South West Pacific, during World War II. The operation was a subordinate action that formed part of the wider Operation Cartwheel, the advance towards Rabaul. An early planning name for this operation was Operation Coronet. Preliminary actions commenced on 23–24 June 1943 when small reconnaissance parties were landed on both islands. The main operation was executed without opposition on 30 June 1943. Around 16,800 personnel took part, divided into two forces. The United States Army provided the majority of ground troops, which were supported by a United States Marine Corps defense battalion as well as U.S. and Australian aircraft and naval vessels.

Kiriwina is the largest of the Trobriand Islands, with an area of 290.5 km². It is part of the Milne Bay Province of Papua New Guinea. Most of the 12,000 people who live in the Trobriands live on Kiriwina. The Kilivila language, also known as Kiriwina, is spoken on the island. The main town is Losuia. The island falls under the administrative division of Kiriwina Rural LLG.

HMAS Hobart was a modified Leander-class light cruiser which served in the Royal Australian Navy (RAN) during World War II. Originally constructed for the Royal Navy as HMS Apollo, the ship entered service in 1936, and was sold to Australia two years later. During the war, Hobart was involved in the evacuation of British Somaliland in 1940, fought at the Battle of the Coral Sea and supported the amphibious landings at Guadalcanal and Tulagi in 1942. She was torpedoed by a Japanese submarine in 1943, then returned to service in 1945 and supported the landings at Tarakan, Wewak, Brunei, and Balikpapan. Hobart was placed in reserve in 1947, but plans to modernise her and return her to service as an aircraft carrier escort, training ship, or guided missile ship were not followed through. The cruiser was sold for scrapping in 1962.

HMAS Arunta (I30/D5/D130) was a Tribal-class destroyer of the Royal Australian Navy (RAN). Named for the Arrernte Aboriginal peoples, the destroyer was laid down in 1939 and commissioned into the RAN in 1942.

Goodenough Island in the Solomon Sea, also known as Nidula Island, is the westernmost of the three large islands of the D'Entrecasteaux Islands in Milne Bay Province of Papua New Guinea. It lies to the east of mainland New Guinea and southwest of the Trobriand Islands. It is roughly circular in shape, measuring 39 by 26 kilometres with an area of 687 square kilometres (265 sq mi) and a shoreline of 116 kilometres (72 mi). From a coastal belt varying in width from 2 to 10 kilometres in width, the island rises sharply to the summit of Mount Vineuo, 2,536 metres (8,320 ft) above sea level, making it one of the most precipitous islands in the world. The small outlier Wagifa Island lies to the south-east of the island, and is included within Goodenough's administration.

The Battle of Cape Gloucester was fought in the Pacific theater of World War II between Japanese and Allied forces on the island of New Britain, Territory of New Guinea, between 26 December 1943 and 16 January 1944. Codenamed Operation Backhander, the US landing formed part of the wider Operation Cartwheel, the main Allied strategy in the South West Pacific Area and Pacific Ocean Areas during 1943–1944. It was the second landing the US 1st Marine Division had conducted during the war thus far, after Guadalcanal. The objective of the operation was to capture the two Japanese airfields near Cape Gloucester that were defended by elements of the Japanese 17th Division.

The landing at Saidor, codenamed Operation Michaelmas, was an Allied amphibious landing at Saidor, Papua New Guinea on 2 January 1944 as part of Operation Dexterity during World War II. In Allied hands, Saidor was a stepping stone towards Madang, the ultimate objective of General Douglas MacArthur's Huon Peninsula campaign. The capture of the airstrip at Saidor also allowed construction of an airbase to assist Allied air forces to conduct operations against Japanese bases at Wewak and Hollandia. But MacArthur's immediate objective was to cut off the 6,000 Imperial Japanese troops retreating from Sio in the face of the Australian advance from Finschhafen.