"Russia's decision to halt gas supplies via Europe's key supply route in the wake of the Ukraine conflict has increased the chances of power shortages." Europe's decision, Germany especially, to be reliant on Russia for energy when they could have not shut down nuclear plants and built more.
There is a penn and teller episode where they argued that globalization was creating world peace. Basically, when everyone’s economies are so entangled, they said, nobody would want to go to war because of how expensive it would be. Their model, I think, only works for democracies. When a dictator controls a country, and their quality of life remains unchanged and revolves mostly around delusions of grandeur (like an…
I no longer believe that most "democracies" are actually democratic in the sense that people are actually represented. One keystone to a functioning democracy is transparency and an informed populace. That population also needs to be capable of shared coherent goals. Culture is programming for the masses, and was once something established through blood. Now, culture is established by media, and control by control of information.
Dictators are just as beholden to culture as a tool for control as are democratically elected leaders. If culture can be manipulated in short order, consent can be manufactured, then there's really not that much difference the authoritarian by declaration versus the authoritarian by "consent".
As long as people have there very most basic needs met, and they are sufficiently convinced that there is no other possibly better state of existence for them- they will live and they will die to the benefit of the leaders subsisting from their labor.
The real, current example of this would be the USA- we've been in conflicts for the entire duration of my life, it hasn't been cheap, but the expenses have been neatly placed on the shoulders of people that will probably never even realize the origin of the burden they bear.
In the meantime, the expenses of war need to be paid to someone, and with a democracy supplanted by lobbyists, we are saddled with a parasitical class of elected officials that do not answer to votes.
tldr - Even in a global economy, wars will happen, because all wars are just wars against the lower classes. War won't stop until the standard of living of the elites are threatened, regardless of the political system.