The Brewster F2A (company Model 139) was an American fighter aircraft which saw limited service during World War II. In 1939, the F2A became the first monoplane fighter aircraft used by the US Navy. In December 1941, it suffered severe losses with both British Commonwealth and Dutch air forces in South East Asia while facing the Japanese Navy A6M Zero and the Japanese Army's Oscar. It also saw action with US Marine Corps squadrons at the Battle of Midway. Frustrated with the Buffalo's poor maneuverability and speed compared to the Japanese Zero, the F2A was derided by U.S. Marine Corps pilots as a "flying coffin".