John Sloan graduated from West Point in 1955 and was commissioned in the Corps of Engineers. He served in Korea and Vietnam and taught in the Department of Social Science. During his time in the Sosh Department, Mr. Sloan focused on European and Russian History. While deployed to Vietnam, Mr. Sloan served in the U.S. Army II Field Force Headquarters in Long Binh as an engineer intelligence officer, tracking the progress of construction projects across Vietnam from 1967-1968. Upon returning from Vietnam, Mr. Sloan spent much of the remainder of his career studying the Russian language and history and becoming an expert on the Soviet Army. In 1976, he retired as a Lieutenant Colonel. In this interview, Mr. Sloan discusses his Cadet experience, teaching in the Department of Social Sciences, serving in Vietnam, and his post-military career in the intelligence and military history fields.