Ever heard of Switzerland? There’s a number of other countries that have non-aligned status for decades.
Exceptions to the rule. Switzerland was and still is, armed to the teeth. You can't be neutral and unarmed or impotent, especially if Russia is next door. The Nazis didn't invade Switzerland in WW2 was because they would have become bogged down. Nowadays, Switzerland's neighbors are barely capable of defending themselves on their own, hence the existence of NATO. Therefore, Switzerland is an exception that actually proves the rule.
PS about Switzerland: every Swiss man has to do a year's training in the Swiss Army. After that, as a going-away present, they keep their automatic rifle at home (but not the ammunition, that's store in armories around the country). The whole point of it is to keep the country neutral and free; not by appeasing its neighbors but by making it costly to anyone thinking of invading it. There's a difference between a country that's non aligned by choice and one that is non aligned at gunpoint. Which would you rather be?
PPS Russian troops have already entered the suburbs of Kiev, pushing toward the government center.