Major Rex Clark received the General Service Medal ( 1962 ) with clasp South Vietnam , the Vietnam Medal 1964-73 and the South Vietnam Campaign Medal 1964-73 for service in South Vietnam . Some sources claim that he was the most decorated Australian serviceman to serve in South Vietnam . Due to Australian Government policy and military regulations at that time , permission to wear foreign awards for Vietnam service , other than the South Vietnam Campaign Medal 1964-73 , were neither approved nor gazetted . He was also controversial for serving as a mercenary in foreign wars while on leave from the Australian Army and where he was awarded a number of foreign awards for bravery
General Service Medal ( 1962 )
General Service Medal (1962)
Rex Clark