Battle of Britain (10 July-31 October 1940)

The Battle of Britain (10 July-31 October 1940) was one of the decisive battles of the Second World War, and saw the RAF defeat a German attempt to gain air superiority over southern England in preparation for Operation Sealion, the planned invasion of Britain. The battle was also the first major defeat to be suffered by the Germans during the Second World War, and by keeping Britain in the war denied Hitler the quick victory that he had expected.