English: Di An, South Vietnam. June 1970. A US Army instructor watches as a corporal fires a .30 calibre machine gun during range practice, about fifteen miles north east of Saigon. He was one of a small number of NCOs who joined the Australian Army Training Team Vietnam (AATTV), and attended an eighteen day course at the American Advisor School. As part of the enlarged role for AATTV, the Australians who graduate from the course will work in Mobile Advisory and Training Teams (MATTs) wiht South Vietnamese regional and popular force soldiers in Phuoc Tuy Province.