Airman William Pook, shown here in 1972, served in the Vietnam War while stationed at Tahkli Royal Thai Air Force Base, Thailand. Pook was 18 years old when he was assigned to the 49th Tactical Fighter Wing, and retired as a master sergeant at Langley AFB, Va., on Sept. 23, 2011, after 40 years in the Air Force. (Courtesy photo/William Pook)