I'm not sure. It seems like it would be more profitable for the 'elite' to just work together to exploit the plebs than to risk war and escalation. Regardless of posturing. I think the tide turned when politicians realized they don't work for us and that we can't do anything about it, without sacrificing everything. Imagine the nazis or commies with the information at their fingertips, like it is today. Altho Joe may be senile, I no more think he can end it than Trump could have. When 'important' people in a country are able to profit off their 'enemies', war gets more and more unlikely.
But likely there will always be minor skirmishes. Unless China decides they are too big to play along. It's hard not to envision war in the future not involving nukes, now that they are prolific. At least on a grand scale.