This publication represents the ninth volume in an operational and chronological series covering the Marine Corps’ participation in the Vietnam War. This particular volume details the final chapter in the Corps’ involvement in South-East Asia, including chapters on Cambodia, the refugees, and the recovery of the container ship SS Mayaguez. Although largely written from the perspective of the III Marine Amphibious Force, this volume also describes the roles of the two joint commands operating in the region: the Defense Attaché Office, Saigon, and the United States Support Activities Group, Thailand. Thus, while the volume emphasizes the Marine Corps’ role in the events of the period, significant attention also is given to the overall contribution of these commands in executing U.S. policy in South-east Asia from 1973 to 1975. Additionally, a chapter is devoted to the Marine Corps’ role in assisting thousands of refugees who fled South Vietnam in the final weeks of that nation’s existence.