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 The battalion subsequently fought a brief campaign along the east coast of the Malay Peninsula before being withdrawn back to Singapore in early 1942.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.