Hmm... Interestingly one does not look at the solutions to de-escalate conflict. Despite the proxy wars we've had a relatively peaceful world since WW1/WW2. Please humor me here, I'm not saying the world is horror free. The emphasis I would hope would also be for improved negotiation tactics, better resource sharing and goal alignment between groups of people. Why is it that we can dream up more conflict but not peac…
There have been wars ongoing since more than centuries. Since way before the US even existed. We could name names and point to movement that have enslaved people, conquered many countries and brought misery everywhere they went way before the european/american slave trade took place, for example. And countries in which slavery persisted long after that one slave-trade was stopped.
Even if you don't go to war, war and misery has a way to come to your country.
While in the US the current president is 2/3rd of his total terms (counting the eight years) and things may go better later on, there are beliefs and cultures in other parts of the world that make it so they are nearly always at war. And this won't stop even should the US "play nice".