I invite the attack on Ukraine because there is nothing I can do to stop it if Russia wants to do it.
If that’s your main reason, then I say put 2 inf there. Russia now has an alarming chance of either not taking Ukraine or losing a fighter in order to do so.
Furthermore, the attack on Ukraine will cost Russia 3 armor one way or the other. That’s 75% of their starting armor and half what they probably have after Round 1. Sure, it cost me a tank and a plane, but so what? I can recover that!
3 armor = 1 armor + 1 fighter in terms of IPCs. Plus, you’ll be forcing them to lose more inf and very probably arm when they counterattack. Your goal is to wear Germany out by making reasonable trades wherever you can, because remember you have to attack Germany separately later on and if you let the units clump too high by conserving yourself too much early on, then it’ll make life very unpleasant.
As for hitting SZ 5, again, as Germany, I welcome it! I purposely don’t buy a carrier on Round 1 in most (not all) games in the hopes England attacks it on UK 1 and I knock down 1 to 3 British Fighters/Bomber! Odd’s are tremendous to get all three, but I have a good chance at one or two! And without those fighters to defend your fleet in SZ 3, I won’t need the German fleet for fodder, well, I will, but not as much.
Every time I see you say there are tremendous odds to get all three, my head explodes. What do you categorize as tremendous odds? I realize there is a sizeable chance to get all three, but it’s neither a majority chance nor a tremendous chance in my book. Plus, good players will not try to pursue the battle if there’s only 1 plane left, they will retreat. That heavily reduces the chance of losing all 3 air units (both the dest and tran have to hit when there’s 2 planes left, which is 1/12 odds).
It’s not a battle I’m going into grinning, but it’s much better than seeing a carrier there and having to spend tons of cash on boats/planes and toeing around it.