Frank Dow Merrill 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.

Merrill’s Marauders (named after Frank Merrill) or Unit Galahad, officially named the 5307th Composite Unit (Provisional), was a United States Army long range penetration special operations jungle warfare unit, which fought in the Southeast Asian theater of World War II, or China-Burma-India Theater (CBI). The unit became famous for its deep-penetration missions behind Japanese lines, often engaging Japanese forces superior in number.