IF Russia went conservative, I almost always do what you said with Germany which is being conservative myself.
That’s a classic german turtle, mass forces in Eastern Europe, swap the 3 territories.
I also tend to only defend Western Europe and Norway G1-G2 depending on allies possible landings. After that i invite them on the beach by removing all troops and AA guns, poising my troops for a decisive counter that does not make it worthwhile for them to land.
The idea is to offer minimum troops to the ennemy while creating dead zones. For this to be efficient, you mainly build infantry backed by your aviation. Build stack after stack of infantry with the occasional fighter or 2 tanks.
You also need to invest one AC in baltic and possibly one more transport in med, you can even invest a second AC if UK is building up to sink it. Once you reach the conclusion allies will be able to sink it, remove the 4 fighters and be contempt they invested past 80ipc for your 32ipc.
And yea, go heavy in Africa. I never found adding transports in Med was a bad move, for that and the fact you get more and more pression on caucasus doing so.
By the time allies crack a well made German Turtle, a turtle that keeps it’s head in the shell, Japan should be in Moscow.
So Yes CaptainJack, it’s a good strategy if you discipline yourself buying mainly infantry, offering no easy opportunity and holding your ground for Japan. This is in the context of a KGF and if Russia did not take Ukraine ( if they did bleed their troops doing so, i always roll over them )