The Douglas A-20 Havoc was an American twin-engine attack aircraft used extensively by the United States Army Air Forces (USAAF) and the Royal Air Force (RAF) during World War II. It was known for its speed and its firepower, being used for a variety of missions including ground attack, night bombing, and reconnaissance. It was powered by two Wright R-2600 Cyclone engines and was armed with machine guns and a bomb load. The Havoc was an effective aircraft for its intended roles, and it served in various theaters of war.