Rex Clark (14 September 1935 — 19 October 1978) was an officer of the Australian Army and a military historian. He was the most decorated Australian serviceman to serve in Vietnam, by the number of decorations and awards received. He gained some notoriety due to his serving as a mercenary in foreign wars while on leave from the Australian Army, and consequently being awarded a number of awards for bravery. He ended his own life while being investigated in relation to the disappearance of militaria from museums and private collections. Wikipedia
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