The Battle of Britain (German: die Luftschlacht um England, literally "Air battle for England") was a combat of the Second World War, when the Royal Air Force ("RAF") defended the United Kingdom ("UK") against the German Air Force (Luftwaffe) attacks from the end of June 1940. It is described as the first major campaign fought entirely by air forces. The British officially recognise its duration as from 10 July until 31 October 1940 that overlaps with the period of large-scale night attacks known as the Blitz, while German historians do not accept this subdivision and regard it as a campaign lasting from July 1940 to June 1941.