1st Armoured Personnel Carrier Squadron (Australia)

1st Armoured Personnel Carrier Squadron
M113s from the 1st Armoured Personnel Carrier Squadron carrying soldiers of the 6th Battalion, Royal Australian Regiment in 1966
Active	July 1965 – January 1967
Country	Australia
Branch	Army
Type	Cavalry
Role	Armoured personnel carrier
Size	7 officers, 109 other ranks
Part of	Royal Australian Armoured Corps
Engagements	Vietnam War Battle of Long Tan
Commanders
Notable commanders	Major Robert Hagerty

The 1st Armoured Personnel Carrier Squadron (1 APC Sqn) was an armoured unit of the Australian Army raised for service during the Vietnam War. Raised in 1965, the unit was deployed to South Vietnam in May 1966 to join the 1st Australian Task Force. After that 1 APC Sqn was involved in numerous operations in support of the 5th and 6th Battalions, the Royal Australian Regiment, with the most notable action coming on 18 August 1966 when the squadron was involved in the Battle of Long Tan. In January 1967, 1 APC Sqn was redesignated as 'A' Squadron, 3rd Cavalry Regiment.