The Brits dealt with the Italians, we practically single handedly dealt with them in Sudan Ethiopia and Libya. The Royal Navy had a right old time with the Italian navy who actually were very effective. The Italians surrendered once the invasion of mainland Italy had started.
We also along
with the Americans wiped out the German air supremecy as you said.
Yes the Americans dealt with the japanese, but you forget the Indians, Australians and New Zealanders who also play a part in Asia.
Britain had to fight alone for nearly a couple of years against the Germans and Vichy French all over the place including North and Central Africa. Though we kept millions of Germans tied down all over the place with attacks and raids on Norway, Northern France, supporting the resistance in central and southern Europe.
Yes we also supplied the Russians with intelligence and weapons. So while much of the actual carnage was along the Russian front the fact that we hindered the Germans in our own small way did help the Russians.
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