Frank Dow Merrill (December 4, 1903 – December 11, 1955) was a United States Army general and is best remembered for his command of Merrill's Marauders, officially the 5307th Composite Unit (provisional), in the Burma Campaign of World War II. Merrill's Marauders came under General Joseph Stilwell's Northern Combat Area Command. It was a special forces unit modelled on the Chindits' long range penetration groups trained to operate from bases deep behind Japanese lines. Background and early career Born on December 4, 1903 in Hopkinton, Massachusetts, Merrill lived with his family in Amesbury, Massachusetts, and graduated from Amesbury High School. He enlisted in the U.S. Army in 1922 and earned the rank of staff sergeant in Company A, 11th Engineers. He received an appointment to West Point in 1925 and he graduated in 1929. He subsequently earned a B.S. in military engineering from the Massachusetts Institute of Technology in 1932. In 1938, Merrill became the Military Attaché in Tokyo where he studied the Japanese language. He joined General Douglas MacArthur's staff in the Philippines in 1941 as a military intelligence officer. Merrill was on a mission in Rangoon, Burma, at the time of the Pearl Harbor attack and remained in Burma after the Japanese invasion. In November 1943, Colonel Merrill was promoted to brigadier general only a month before his fortieth birthday, making him one of the youngest American generals since the Civil War. Even more remarkable was the fact that he had been serving as a commissioned officer for only 14 years. He was promoted to major general in September 1944 at the age of 40. Merrill's Marauders In 1943, General Merrill was appointed to command a new volunteer U.S. Army special forces unit patterned after the Long Range Jungle Penetration groups formed by the British to harass Japanese forces in Burma (the Chindits). The U.S. Army's official name for the unit was the 5307th Composite Unit (Provisional). (The title provisional means the unit is formed for a special mission or operation and will be disbanded afterwards.) Visiting war correspondents, after viewing the 5307th's performance on the firing ranges, promptly dubbed the unit Merrill's Marauders. General Merrill oversaw the training and deployment of the three battalions of the 5307th into Burma in February 1944. In slightly more than five months of combat behind Japanese lines in Burma, the Marauders, who supported the X Force, advanced 750 miles through some