The Second Australian Imperial Force was the volunteer expeditionary force of the Australian Army in the Second World War. It was formed following the declaration of war on Nazi Germany, with an initial strength of one infantry division and related auxiliary components. After considerable expansion of this force, three divisions were sent to the Middle East and North Africa, while the 8th Division was sent to garrison British Malaya and Singapore.
The 8th Division was an infantry division of the Australian Army, formed during World War II as part of the all-volunteer Second Australian Imperial Force. The 8th Division was raised from volunteers for overseas service from July 1940 onwards. Consisting of three infantry brigades, the intention had been to deploy the division to the Middle East to join the other Australian divisions, but as war with Japan loomed in 1941, the division was divided into four separate forces, which were deployed in different parts of the Asia-Pacific region. All of these formations were destroyed as fighting forces by the end of February 1942 during the fighting for Singapore, and in Rabaul, Ambon, and Timor. Most members of the division became prisoners of war, waiting until the war ended in late 1945 to be liberated. One in three died in captivity.
The Battle of Ambon occurred Ambon Island in the Dutch East Indies, as part of the Japanese offensive on the Dutch colony during World War II. In the face of a combined defense by Dutch and Australian troops, Japanese forces conquered the island and its strategic airfield in several days. In the aftermath of the fighting, a major massacre of many Dutch and Australian prisoners of war by the Imperial Japanese Army (IJA) followed. Following the war, many of the IJA personnel were tried for war crimes.
The Battle of Timor occurred in Portuguese Timor and Dutch Timor during the Second World War. Japanese forces invaded the island on 19 February 1942 and were resisted by a small, under-equipped force of Allied military personnel—known as Sparrow Force—predominantly from Australia, United Kingdom, and the Dutch East Indies. Following a brief but stout resistance, the Japanese succeeded in forcing the surrender of the bulk of the Allied force after three days of fighting, although several hundred Australian commandos continued to wage an unconventional raiding campaign. They were resupplied by aircraft and vessels, based mostly in Darwin, Australia, about 650 km (400 mi) to the southeast, across the Timor Sea. During the subsequent fighting, the Japanese suffered heavy casualties, but they were eventually able to contain the Australians.
The Borneo campaign or Second Battle of Borneo was the last major Allied campaign in the South West Pacific Area during World War II to liberate Japanese-held British Borneo and Dutch Borneo. Designated collectively as Operation Oboe, a series of amphibious assaults between 1 May and 21 July 1945 were conducted by the Australian I Corps, under Lieutenant-General Leslie Morshead, against Imperial Japanese forces who had been occupying the island since late 1941 – early 1942. The main Japanese formation on the island was the Thirty-Seventh Army under Lieutenant-General Masao Baba, while the naval garrison was commanded by Vice-Admiral Michiaki Kamada. The Australian ground forces were supported by US and other Allied air and naval forces, with the US providing the bulk of the shipping and logistic support necessary to conduct the operation. The campaign was initially planned to involve six stages, but eventually landings were undertaken at four locations: Tarakan, Labuan, North Borneo and Balikpapan. Guerilla operations were also carried out by Dayak tribesmen and small numbers of Allied personnel in the interior of the island. While major combat operations were concluded by mid-July, localised fighting continued throughout Borneo until the end of the war in August. Initially intended to secure vital airfields and port facilities to support future operations, preparatory bombardment resulted in heavy damage to the island's infrastructure, including its oil production facilities. As a result, the strategic benefits the Allies gained from the campaign were negligible.
The Battle of Balikpapan was the concluding stage of Operation Oboe, the campaign to liberate Japanese-held British and Dutch Borneo. The landings took place on 1 July 1945. The Australian 7th Division, composed of the 18th, 21st and 25th Infantry Brigades, with a small number of Netherlands East Indies KNIL troops, made an amphibious landing, codenamed Operation Oboe Two, a few miles north of Balikpapan. The Allied invasion fleet consisted of around 100 ships. The landing had been preceded by heavy bombing and shelling by Australian and US air and naval forces. The Allied force totalled 33,000 personnel and was commanded by Major General Edward Milford, while the Japanese force, commanded by Rear Admiral Michiaki Kamada, numbered between 8,400 and 10,000, of which between 3,100 and 3,900 were combatants. After the initial landing, the Allies secured the town and its port, and then advanced along the coast and into the hinterland, capturing the two Japanese airfields. Major combat operations concluded around 21 July, but were followed by mopping-up operations, which lasted until the end of the war in mid-August. Australian troops remained in the area until early 1946.
Sparrow Force was a detachment based on the 2/40th Australian Infantry Battalion and other Dutch, British, US and Australian 8th Division units during World War II. The force was formed to defend the island of Timor from invasion by the Empire of Japan. It formed the main part of the Allied units in the Battle of Timor.
No. 13 Squadron is a Royal Australian Air Force (RAAF) squadron. The unit saw combat during World War II as a bomber and maritime patrol squadron and is currently active as a mixed regular and reserve RAAF unit located in Darwin, fulfilling both operational support and training duties.
The 2/7th Battalion was an infantry battalion of the Australian Army raised for service during World War II. Formed as part of the 6th Division shortly after the outbreak of the war as part of the all-volunteer Second Australian Imperial Force, the 2/7th Battalion's initial personnel were recruited primarily from the state of Victoria, although later reinforcements were drawn from most other Australian states. Basic training was completed in Australia, after which the battalion embarked for the Middle East as part of the first batch of Australian troops to deploy overseas. Further training was undertaken in Palestine before the battalion went into action against the Italians in January 1941. After participating in the successful capture of Bardia and Tobruk, it was committed to the disastrous Battles of Greece and Crete, where the battalion was essentially destroyed after the majority of its personnel were captured.
The 2/18th Battalion was an Australian Army infantry unit that served during World War II. Formed in June 1940, the battalion was assigned to the 22nd Brigade, which formed part of the Australian 8th Division. After completing basic training, the 2/18th was sent to Singapore and Malaya to strengthen the defences of the British colonies in February 1941 against a possible Japanese attack. The 2/18th Battalion subsequently undertook garrison duties throughout the year at various locations in Malaya, where it conducted jungle training and constructed defences along the eastern coast.
The 2/12th Field Ambulance was an Australian military unit of the Second Australian Imperial Force, serving during World War II. During their six years of service, over 200 soldiers were killed, the highest figure for a non-combatant unit in Australian history. The majority of the unit's casualties were suffered during the sinking of the hospital ship Centaur in May 1943. During the war, the 2/12th deployed personnel in support of Australian combat operations against the Japanese on Ambon, Timor and in Borneo before being disbanded in 1946.
The Australian Army was the largest service in the Australian military during World War II. Prior to the outbreak of war the Australian Army was split into the small full-time Permanent Military Forces (PMF) and the larger part-time Militia. Following the outbreak of war on the 3rd of September 1939, 11 days later, on 14 September 1939 Prime Minister Robert Menzies announced that 40,000 members of the Militia would be called up for training and a 20,000-strong expeditionary force, designated the Second Australian Imperial Force, would be formed for overseas service. Meanwhile, conscription was introduced in October 1939 to keep the Militia at strength as its members volunteered for the AIF. The Australian Army subsequently made an important contribution to the Allied campaigns in the Mediterranean, the Middle East and North Africa fighting the Germans, Italians and Vichy French during 1940 and 1941, and later in the jungles of the South West Pacific Area fighting the Japanese between late 1941 and 1945. Following the Japanese surrender Australian Army units were deployed as occupation forces across the South West Pacific. Meanwhile, the Army contributed troops to the British Commonwealth Occupation Force (BCOF) in Japan from 1946.
The 2/30th Battalion was an infantry battalion of the Australian Army that served during World War II. Raised in late 1940 as part of the all volunteer Second Australian Imperial Force, the battalion formed part of the 27th Brigade, which was assigned to the 8th Division. In mid-1941, the battalion was deployed to Malaya, as the garrison there was increased amidst rising tensions in the Pacific. In early1942, it fought against the Japanese during the Malayan Campaign and the Battle of Singapore, where it was captured in February 1942. Many of the 2/30th's personnel died in captivity before the war ended in August 1945.
The 2/40th Battalion was an infantry battalion of the Australian Army. Formed in mid-1940 from personnel recruited from Tasmania, the battalion was assigned to the 23rd Brigade, which formed part of the 8th Division. After completing basic training, the 2/40th was sent to Darwin to form part of the defensive garrison there as tensions with the Japanese grew throughout 1941. Following Japan's entry into the war, the battalion was deployed to Timor as part of Sparrow Force and in early 1942 they took part in the fighting on the island against the Japanese. Outnumbered and lacking supplies, the majority of the 2/40th's personnel were captured and spent the rest of the war as prisoners of war, although some were able to wage a guerrilla campaign across the island before being withdrawn by the end of year.
The 23rd Brigade was a brigade of the Australian Army. It was briefly raised in 1912 as a Militia formation providing training as part of the compulsory training scheme. Later, it was re-formed in July 1940 for service during the Second World War, the brigade was initially a formation of the Second Australian Imperial Force assigned to the 8th Division; however, after its sub units were captured by the Japanese in 1942 it was reformed with Militia battalions and was mainly used in a garrison role around Darwin, in the Northern Territory, until late in the war when it was committed to the fighting against the Japanese on Bougainville. It was disbanded in 1946.
The 2/22nd Battalion was an infantry battalion of the Australian Army. Raised as part of the Second Australian Imperial Force for service during World War II, the battalion formed part of the 23rd Brigade, attached to the 8th Division. It was captured by the Japanese during the Battle of Rabaul in 1942. After being captured, the battalion was not re-raised and a large number of its personnel died in captivity; those that did not were returned to Australia at the end of the war in 1945.
The 2/26th Battalion was an infantry battalion of the Australian Army. Raised in late 1940 for service during the Second World War, the battalion undertook garrison duties in Malaya and Singapore prior to the start of the Pacific War. In 1941–42, following the Japanese invasion of Malaya, the battalion fought during the Malayan campaign. After the fall of the island, however, many of its soldiers became prisoners of war, remaining in captivity until being liberated at the end of the war in 1945. The battalion was never re-raised.
The 2/29th Battalion was an infantry battalion of the Australian Army, which served during the Second World War. Formed in October 1940, the battalion served in Malaya as part of the 27th Brigade, which was assigned to the 8th Division. Recruited mainly from volunteers drawn from the state of Victoria, after completing its training around Bonegilla and then Bathurst, the 2/29th Battalion was sent to Malaya in August 1941 along with the rest of the 27th Brigade to bolster the Australian force there and subsequently fought in the Malayan Campaign following the Japanese attack in December 1941. The battalion fought several delaying actions along the west coast, including fighting around Bakri and Muar, and in Johore, before Allied forces withdrew across the Causeway to Singapore. The battalion later took part in the defence of Singapore in February 1942, but was captured after the garrison capitulated on 15 February. They spent the remainder of the war as prisoners of war, with many dying in captivity.
The 2/20th Battalion was an infantry battalion of the Australian Army. Raised in mid-1940 as part of the 8th Division, the battalion was recruited from Second Australian Imperial Force volunteers drawn from the state of New South Wales. In early 1941, the 2/20th Battalion deployed to Malaya, where they formed part of the garrison there until December when the Japanese invaded. The battalion subsequently fought a brief campaign along the east coast of the Malay Peninsula before being withdrawn back to Singapore in early 1942. They were heavily engaged after the Japanese landed on the island, and were eventually captured following the Fall of Singapore. Most members of the battalion became prisoners of war, and a large number died in captivity.
Lieutenant Colonel John Charles Robertson was a senior officer in the Australian Army who served in both the First and Second World Wars.
