When did the battle of britain begin and end?
No context provided
When did the battle of britain begin?
10 July 1940
No context provided
When did the battle of britain end?
31 October 1940
Battle of Britain
https://en.wikipedia.org/wiki/Battle%20of%20Britain
The Battle of Britain (German: die Luftschlacht um England, "the Air Battle for England") was a military campaign of the Second World War, in which the Royal Air Force (RAF) and the Fleet Air Arm (FAA) of the Royal Navy defended the United Kingdom (UK) against large-scale attacks by Nazi Germany's air force, the Luftwaffe. 
Battle of Britain
The Battle of Britain was a military campaign of the Second World War, in which the Royal Air Force and the Fleet Air Arm of the Royal Navy defended the United Kingdom against large-scale attacks by Nazi Germany's air force, the Luftwaffe. It began on 10 July 1940 and ended on 31 October 1940.