Their military is in shambles. Satellite photos show their armored vehicle stockpiles are virtually empty, to the point where they're sending some troops on suicide runs using ATV's, golf carts, and motorcycles because they don't have enough APC's to spare.
They are in no shape to invade anyone besides ukraine.
Highly recommend Linux Mint. It's the most beginner friendly, smooths things over, has a great app store, and will make you feel mostly at home.