Marines, Let's Go is a 1961 CinemaScope DeLuxe Color Korean War film about three Marine buddies (Tom Tryon, David Hedison and Tom Reese) on shore leave in Japan and at war in Korea. It was produced and directed by Raoul Walsh, who also wrote the story. Walsh had previously had successes with films about the U.S. Marine Corps in World War I (What Price Glory?), the 1920s (The Cock-Eyed World and Sadie Thompson), and World War II (Battle Cry). This was the next-to-last film of Walsh's long directing career.

Plot

During the Korean War, an infantry unit from the 1st Marine Division is given R&R in Yokosuka, Japan. The group is led by PFC Desmond "Let's Go" McCaffrey, a veteran of the Guadalcanal campaign and the Battle of Okinawa with over 16 years of service in the Corps, yet he is repeatedly demoted from the rank of Sergeant. McCaffrey, described as "a headache to the enemy, a migraine to the M.P.s" is incapable of behaving himself on leave due to his penchants for excessive alcohol consumption and hand-to-hand combat with people on his own side.