The Australian Army 547 Signal Troop and the United States Army Security Agency

Brief history of the Australian Army's 547 Signal Troop's service with the U.S. Army Security Agency in Vietnam from 1966 to 1973. The Troop was the Australian Army's SIGNIT or signals intelligence unit supporting its combat units during their deployment to Viet Nam. This is a history of that unit and an outline of the history of ASA during that war.