Where would the USSR have been without the Battle of Britain, which stopped Germany invading Britain and allowed Britain and its Commonwealth to fight on alone in the world until the USSR was forced into the war by Germany’s attack in mid-1941?
Imagine what would have happened to the USSR if Britain had been defeated and the German forces it held against it in western Europe and the Mediterranean and the Atlantic to mid-1941 had been released for the assault on the USSR.
Not to mention the material and materiel support which came to the USSR from Britain and from America based through Britain to the USSR after the USSR was forced into the war.
Around the same time Britain was busy evacuating its army from France so it could continue its lone fight with its Commonwealth against Germany, the USSR after carving up eastern Europe with Germany was busy massacring 20,000 or so Polish soldiers at Katyn.
Shortly afterwards Britain defeated Germany in the Battle of Britain, which held German forces against Britain in various theatres.
This allowed the USSR to avoid fighting Germany, which was a very good idea as Stalin, with the rare brilliance of paranoid dictators, had wiped out much of the senior ranks of the Soviet officer corps in his memorably stupid purges and thereby left his army deficient in leadership capable of matching the Germans.
Other way around.
As leccy said,
Either you’re a troll or, politely, ignorant of history.
Either way, best for you to lift your game.