As soon as Putin feels threat, he will push the nuclear button

The one major problem to this argument is, if you give way to any dictator, they will use the same method again and again. The Questions is one: will the West “fully” support Ukraine, currently this is not so, only selling weapons in a defence mode, a lot more could be done to enable Ukraine to be an attack force, many countries are holding back heavy battle equipment. Secondly if the West gives up on Ukraine, then Pootin would turn his attentions to any of the 14 forma Soviet Empire countries, already the start of this action has taken place with many Russians leaving the “motherland” and seeded within the indigenous population, Pootin would use the same excuse to invade to “protect” Russian citizens in foreign countries, which by the way Pootin and his regime still thinks these are part of Russia, as excuse was enabled by the West due to procrastination and appeasement. Bottom line “call the dictators bluff”, set a real “red-line” and stick to it, if you don`t do it now, it will become much hard are the years pass by as Russian money will be use to buy off wavering countries governed by light fingered politicians. nuclear weapons will not stop Ukrainian army. but Moscow will definitely feel radiation after that. but that coward is not able to attack with nuclear weapons.