Retired Army Col. Ben Skardon, left, laughs with service members and supporters during the Bataan Memorial Death March at White Sands Missile Range, N.M., March 19, 2017. Skardon is a survivor of the Bataan Death March and is the only survivor who walks in the memorial march. This is the tenth year in a row he has done so. Army photo by Staff Sgt. Ken Scar