Sentinel's Return World War II veteran Jack Eaton, 100, and Army Capt. Harold Earls, commander of the Tomb Guard, watch the Changing of the Guard Ceremony at the Tomb of the Unknown Soldier at Arlington National Cemetery, Va., Oct. 23, 2019. Eaton, a former Army corporal, served as a sentinel at the Tomb of the Unknown Soldier from 1938-1940. SHARE IMAGE: Download Image: Full Size (5.19 MB) Tags: Army, World War II, veterans, Tomb of the Unknown Soldier Photo By: Elizabeth Fraser, Army VIRIN: 191023-A-IW468-541.JPG Photo Gallery