The Messerschmitt Bf 110, often known unofficially as the Me 110, is a twin-engined Zerstörer, fighter-bomber, and night fighter (Nachtjäger) designed by the German aircraft company Bayerische Flugzeugwerke (BFW) and produced by successor company Messerschmitt. It was primarily operated by the Luftwaffe and was active throughout the Second World War.