The Australian and New Zealand Army Corps (ANZAC) was a First World War army corps of the Mediterranean Expeditionary Force that was formed in Egypt in 1915 and operated during the Battle of Gallipoli. General William Birdwood commanded the corps, which comprised troops from the First Australian Imperial Force and 1st New Zealand Expeditionary Force. The corps was disbanded in 1916 following the Allied evacuation of the Gallipoli peninsula and the formation of I Anzac Corps and II Anzac Corps.