RAN Clearance Diving Teams completed their service in Vietnam. Between February 1967 and May 1971, they carried out the following operations:- searched 7573 ships for mines and other underwater explosive devices, made 153 major dives, other than underwater ship searches, destroyed 358 tons of heavy ordnance, and completed 68 special operations, such as ambushes of enemy troops and divers, bunker searches, and the recovery of sunken vessels and aircraft. Total casualties were one accidentally killed and one wounded.