High Quality Content by WIKIPEDIA articles! The military career of L. Ron Hubbard saw the future founder of Scientology serving in the United States Armed Forces as a member of the Marine Corps Reserve and, between 1941–50, the Navy Reserve. He saw active service between 1941–45, during World War II, as a naval Lieutenant, junior grade and later Lieutenant, senior grade. After the war he was mustered out of active service and resigned his commission in 1950.