Ships of the Royal Australian Navy were stationed on continuous operational service in Vietnam between 1965 and 1972; a total 18 ships served in Vietnam waters during the war. During this period, the navy performed a wide variety of operational tasks at sea, ashore, and in the air. The RAN's primary contribution consisted of destroyers, Fleet Air Arm personnel attached to a United States Army helicopter company and No. 9 Squadron RAAF, a Clearance Diving Team, and a logistical support force consisting of transport and escort ships. Other RAN personnel served ashore in medical teams or performed staff duties at the Australian Embassy in Saigon or the 1st Australian Task Force Headquarters at Nui Dat.