Experts seem divided on whether or not Russia’s invasion of Ukraine already qualifies as a global war. There’s no doubt that the conflict is having negative consequences on an international scale. There are those who claim that these consequences are grave enough to eventually end society as we have come to know it.
I think anyone can envision a scenario whereby V. Putin makes a decision that provokes other powers into direct armed conflict.
I don’t think this will end well. Slow escalation will eventually lead to a cascade of chaos.