Russia and the united states control 90 % of the world's nuks. A Russian nuclear war would be an extinction level event, most likely. Any kind of direct conflict between nato and russian troops is too dangerous to contemplate. The amount of military aid going to ukraine is not a nothing grate. These sanctions are devastating russia's economy. It seems that there are entire financial systems on the brink of collapse right now. And it turns out ukrane is now showing why those fears were quite valid.