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| Infantry divisions of Australia | |
|---|---|
| Unit name | Australian Infantry Divisions |
| Country | Australia |
| Branch | Australian Army |
| Type | Infantry |
| Role | Ground warfare |
| Notable commanders | Thomas Blamey, John Lavarack, Leslie Morshead |
| Battles | World War I, World War II, Kokoda Track campaign, Papuan campaign |
Infantry divisions of Australia are the large combined-arms formations raised by the Australian Imperial Force, the Second Australian Imperial Force, and the postwar Australian Army during major twentieth-century conflicts. They provided the principal maneuver elements for campaigns in the Western Front, the Middle East, the Pacific War, and garrison duties in the British Empire and Commonwealth of Nations regions. Divisional organisations reflected British doctrinal influence from the British Army while adapting to operations in Gallipoli, the Western Desert campaign, and jungle warfare in New Guinea.
Australian infantry divisions were numbered and designated within the 1st AIF and the 2nd AIF systems, and later by the Australian Army during peacetime reorganisation. Iconic formations include the 1st Division, 2nd Division, 3rd Division, and theatre-specific divisions such as the 6th Division and 7th Division (Australia). Command relationships often involved the Imperial Staff, the British High Command, and combined headquarters such as ANZAC and Allied Land Forces. Divisional staffs worked with corps-level formations like I Corps (Australia) and II Corps (Australia) and with multinational partners including the United States Army and New Zealand Army.
Divisional structure followed tables of organisation and equipment influenced by the British Expeditionary Force model, typically comprising three infantry brigades, divisional artillery from the Royal Australian Artillery, engineer units from the Royal Australian Engineers, logistical elements from the Royal Australian Army Ordnance Corps, and medical services via the Australian Army Medical Corps. During World War I the Australian Imperial Force divisions integrated militia elements such as the Commonwealth Military Forces and formations raised in states like New South Wales and Victoria. In World War II, the 2nd AIF divisions expanded to include armoured reconnaissance from the Royal Australian Armoured Corps and anti-aircraft detachments coordinating with the Royal Australian Air Force. Commanders including Thomas Blamey, John Lavarack, and Leslie Morshead adapted organisation to logistics constraints in the Middle East and jungle terrain in New Guinea.
Australian divisions first saw major action during the Gallipoli Campaign where territorial infantry brigades fought alongside the New Zealand Expeditionary Force and the British Empire expeditionary formations. On the Western Front, AIF divisions participated in offensives such as the Battle of Pozières, the Battle of Fromelles, and the Hundred Days Offensive. In World War II, the 6th Division and 7th Division fought in the North African campaign and the Syria–Lebanon campaign, and later in the Papuan campaign including operations on the Kokoda Track and at Milne Bay. Divisions also contributed to the Borneo campaign and garrison duties in British Malaya. Divisional operations often coordinated with Allied commands such as Middle East Command, South West Pacific Area, and the Allied Land Forces South East Asia.
Equipment for Australian divisions included small arms like the SMLE, Lee–Enfield, and later Owen submachine gun and Bren gun support weapons; artillery pieces such as the 18-pounder field gun and 25-pounder field gun; and armoured support from vehicles like the Matilda II and M3 Stuart. Engineers employed bridging and demolition equipment developed for river crossings in France and jungle obstacles in New Guinea. Training centers such as Duntroon, the Royal Military College, and brigade training depots in Sydney, Melbourne, and Brisbane adapted curricula to lessons from Battle of Britain air support coordination and jungle warfare doctrines influenced by experiences in the Malay Peninsula and Solomon Islands campaign. Cooperation with the Royal Australian Air Force and United States Army Air Forces improved close air support and reconnaissance for divisional operations.
Australian infantry divisions were prominent at engagements including the Gallipoli Campaign, Battle of Pozières, Battle of Fromelles, the Siege of Tobruk, the Battle of El Alamein, the Kokoda Track campaign, Battle of Milne Bay, and the Borneo campaign. Divisional commanders such as Leslie Morshead at Tobruk and Thomas Blamey across multiple theatres became central figures in Australian military history. Divisions also took part in multinational operations with forces from the United Kingdom, United States, New Zealand, and units of the Indian Army during the interlinked campaigns across Europe, North Africa, and the Pacific.
After World War II the Australian Army demobilised many wartime divisions, reconstituting a peacetime force including the Citizen Military Forces and reorganised divisional headquarters in response to the Cold War. Legacy institutions such as divisional battle honours are preserved by regiments like the Royal Australian Regiment and by military museums including the Australian War Memorial. Postwar Australian defence reviews, including policy decisions influenced by alliances such as the ANZUS treaty, shaped the structure that succeeded divisional organisation and informed later deployments to conflicts like the Korean War and Vietnam War. The historical record of Australian infantry divisions remains central to studies in campaigns across Gallipoli, the Western Front, North Africa, and the South West Pacific Area.
Category:Military units and formations of Australia Category:Australian Army