The Douglas A-26/B-26 bomber was the only American bomber to fly missions in three wars. After World War II, it served as a first-line bomber during the Korean War and during the Vietnam War. Douglas started the A-26 in 1941 to follow the A-20/DB-7 Havoc bomber. Executive Producer Connie Bowlin. Written and Directed by DAVID HARTMAN. Length 8:00.