Carve up Germany into little bits and pieces then do the same to every other large country to ensure the csa's domination of the world and socalisms too cant forget the socalism
I'd say invade Bohemia, Austria-Hungary, Poland and Italy. After the conquests, then liberate Poland as an radical socialist state...that way, it should eat up territory from Germany and cut it down a bit in size. Then liberate Germany, Bohemia (make it Czechoslovakia or whatever its version is in this timeline, and create Yugoslavia, Austria, Hungary...just my idea.
Emperor Stalin! Will you commence in the production of Nuclear Reactors? You have the technology! It will bring glory to the people of the Socialist Coalition, and will lead to the Glorious Weapon of Atom!
Hold on to the Fatherland until you are done with your next conquests. Invade Austria, because I want you kick their ass like I did in 1866. And hey, while we're at it, take out Poland. They've only been partitioned what? Three times? I don't think a fourth sounds so bad eh?