As per Albert Einstein said that it would not be the world war 3 who could declare the winner else it would be on the world war 4 in which people now only uses a stone sword or an archer. WwIII is worst because of the nuclear war trust me
There will be no nuclear war, trust me. In 1945, the Americans were able to use the nukes because none of their rivals had that kind of weapons. But things have changed now. Almost a dozen nations possess nuclear weapons as of now.