The thing is that, in academic history, any war starts with an event. That event is the invasion of Poland on the 1st of September, 1939.

Wow and the war in ukraine started exactly in 2022 when the evil vladimir "voldemort" putin randomly decided to invade for no other reason than being evil, right?

Wow you're a fucking moron. Wars don't start with "events," WWI wasn't started because some serb killed the Archduke, wars start because of historical and material trends provoking conflict over resources and territory. God you're fucking stupid