Barry Sadler (November 1, 1940 – November 5, 1989) was an American soldier, author, singer and songwriter. Sadler served as a Green Beret combat Medic with the rank of Staff Sergeant in the U.S. Army during the Vietnam War. Most of his work has a military theme, and he billed himself as SSG Barry Sadler (although his label credits read SSgt Barry Sadler).