You’d still want an IC in W. Europe for England so that you can move the British fleet into the Med to pincer the Japanese fleet then.
Anyway, most players will just surrender after Moscow or Berlin falls. (Assuming a normal situation, which is to say, massive Axis armies, pitiful Allied armies or badly positioned Allied armies. (switch if axis falls not allies.))
You can also drive tanks that were not engaged through the territory to a friendly territory on the other side. Good way to open up reinforcement routes in Europe.