Book Description: Osprey's study of the Military Assistance Command of the Vietnam War (1955-1975). In 1964 Military Assistance Command, Vietnam, activated a joint unconventional task force known as the Studies and Observation Group--MACV-SOG. As a cover its mission was to conduct analysis of lessons learned in combat involved all branches of service. SOG's real mission was to conduct covert strategic reconnaissance missions into Laos, Cambodia, and South Vietnam as well as sabotage and 'Black' psychological operations. Ground, air, and naval assets were employed to insert, collect, extract, and otherwise support these operations. Drawing on detailed, first-hand accounts of the experiences of the service, including action on operations, this book will shed light on one of the most crucial units of the Vietnam War.