Let's say that the German advance makes the Soviets brown their pants so severely, that they beg for peace. That they're desperate enough to sign anything so long as they can continue existing . . . Even if it means they have to give up everything up to the Urals.
It can be any number of reasons. A Barbarossa that's somehow even more successful than it already was . . . Or I dunno . . . Stalin trips and bashes his skull open on a table or something, dying and causing political chaos.
It's an early knockout. Late 41, maybe Early 42. The point is, the Nazis were able to make the Soviets give up hope somehow.
---------------
How does the rest of the war play out?
Would the British at this point be even remotely likely to sign a peace treaty?
Would the Axis steamroll North Africa and the Middle East if the British keep going?
Or is this inevitably going to lead to Normandy: Atomic Edition?
So yeah. This is all just me wondering what happens if the Soviets get knocked out of the war early.