The claim that prompted me to cite the RAF was this : Wars have never been won by creating no-fly zones, having air superiority due to 'modern air power' or obliterating countries with bombs and drones alone. A direct result of the Battle of Britain being effectively won by the RAF, was that Hitler abandoned his plan to invade. Instead he sent his armies east. After initial success against Russia, the German axis was stopped before Moscow, then slowly ground down around Stalingrad, and by early 1943 it was depleted so much that retreat was the only option. The Germans never really recovered after that and with the USA now involved, they were done. So, in this case I would say that the war was won due to the RAF victory domino, because if Germany had occupied the UK, then the British would not have been able to fight in North Africa and Americans would not have had the UK to use as a staging post to use as a launch pad to send their army into continental Europe.
