Globalization offered the model for this. When the economy is globally linked there is more pressure for stability than conflict. I think that theory still holds. The fallout of the last 10 years is that the distribution of the wealth created in that system has not been even at all, and we are seeing huge wealth gaps. Jobs were redistributed to poorer nations and lost in a lot of wealthier markets.
If nations can solve wealth and job distribution under globalization then I think we return back to peaceful times. The current problems stem from people getting left out and then voting in leaders who do not understand diplomacy or the global market at all.
As I understand it, the idea was that there would be winners and losers from globalization but overall the benefit would be more global and outweigh localized drawbacks. This means that you can tax the global benefit and compensate the losers while still having everyone come out ahead! Sounds fantastic right, but in reality there were winners and losers and no one gave a shit about the losers. Detroit and Toledo did not gracefully transition from being industrial centers to centers of art and culture, they rusted and rotted and were denigrated by the coastal elite who benefited from their place in the world as finance and service hubs.
“Wilt thou call again thy peoples, wilt thou craze anew thy Kings? “Lo! my lightnings pass before thee, and their whistling servant brings, “Ere the drowsy street hath stirred— “Every masked and midnight word, “And the nations break their fast upon these things.
“So I make a jest of Wonder, and a mock of Time and Space. “The roofless Seas an hostel, and the Earth a market-place, “Where the anxious traders know “Each is surety for his foe, “And none may thrive without his fellows’ grace.
“Now this is all my subtlety and this is all my wit, “God give thee good enlightenment, My Master in the Pit. “But behold all Earth is laid “In the Peace which I have made, “And behold I wait on thee to trouble it!”
The Peace of Dives Kipling, 1903
https://www.kiplingsociety.co.uk/poem/poems_dives.htm
(As you know, there have been no major wars since then)
So the problem is that people in poor countries are finally not starving but not that the person with a chainsaw owns hundreds of billions of dollars?
I agree with your comment regarding fairer distribution, but I think when we look at globalisation's impact on war, I'm not sure this is really playing out.
Iran has not benefitted hugely from globalisation (unless I'm missing something), however because of globalisation and their ability to impact the global economy, they have an outsized hand to play relative to their GDP.
I'll add to this by saying that globalization works as well as it does because the average person would suffer dramatically from a major war and the resulting breakdown of global supply chains. People who are wealthy enough to move anywhere in the world (including to a military-grade bunker somewhere remote like New Zealand) if their current domicile is negatively affected don't have as strong of an incentive to maintain peace.