V-1 and Buzz Bomb, also colloquially known in Britain as the Doodlebug, was an early pulse-jet-powered predecessor of the cruise missile. It was developed at Peenemünde Airfield by the German Luftwaffe during the Second World War. At its peak, more than one hundred V-1s a day were fired at southeast England, 9,521 in total, decreasing in number as sites were overrun until October 1944, when the last V-1 site in range of Britain was overrun by Allied forces.