Allen B. Clark graduated from the United States Military Academy at West Point in 1963. Two years later, he volunteered for service in Vietnam and was assigned to the Fifth Special Forces Group. He was wounded in an early-morning mortar attack on the Dak To Special Forces camp on June 17, 1967, which necessitated the amputation of both legs below his knees. He lives in Dallas, Texas, and is the author of Valor in Vietnam: Chronicles of Honor, Courage and Sacrifice: 1963-1977 and Wounded Soldier, Healing Warrior (2007), the story of his journey of healing.