Operation Crimp Westmoreland requested further reinforcement and US and allied forces increased to 44 battalions which would be used to directly bolster the ARVN. Australia's growing involvement in Vietnam reflected the American build up. In 1963, the Australian government had committed a small advisory team, known as the Australian Army Training Team Vietnam (AATTV), to help train the South Vietnamese forces. However, in June 1965 the decision to commit ground troops was made, and the 1st Battalion, Royal Australian Regiment—originally commanded by Lieutenant Colonel Ivan 'Lou' Brumfield—was dispatched. Supporting 1 RAR was 1 Troop, A Squadron, 4th/19th Prince of Wales's Light Horse
Military history of Australia during the Vietnam War dispatched as the Australian Army Training Team Vietnam (AATTV), also known as "the Team". The Australian military assistance was to be in jungle warfare training, and the Team comprised highly qualified and experienced officers and NCOs, led by Colonel Ted Serong, many with previous experience from the Malayan Emergency. Their arrival in South Vietnam during July and August 1962 was the beginning of Australia's involvement in the war in Vietnam. Relationships between the AATTV and US advisors were generally very cordial, but there were sometimes significant differences of opinion on the training and tactics that should be employed. For example,