The 2/48th Battalion was an infantry battalion of the Australian Army which served during the Second World War. Raised in Adelaide in South Australia in August 1940, the battalion formed part of the 26th Brigade and was initially assigned to the 7th Division, although it was later transferred to the 9th Division in 1941 when it was deployed to the Middle East. While there, it saw action during the siege of Tobruk and the First and Second Battles of El Alamein before being returned to Australia to take part in the fighting in New Guinea following Japan's entry into the war.

The 26th Brigade was an Australian Army infantry brigade of World War II. Formed in mid-1940, the brigade was assigned to the 7th Division initially, but later transferred to the 9th Division. It was primarily recruited from Victoria and South Australia. After training in Australia, in late 1940, the brigade deployed to the Middle East and subsequently took part in the siege of Tobruk, defending the vital port town between April and October 1941. After being relieved, the brigade undertook garrison duties in Syria in the first half of 1942, before taking part in the First and Second Battles of El Alamein between July and November 1942. After returning to Australia in early 1943, the brigade fought against the Japanese in New Guinea in 1943 and 1944, including the capture of Lae and the Huon Peninsula campaign, and then took part in the fighting on Tarakan in 1945. It was disbanded in early 1946.