Earlier quoted context omitted.
A full scale war today, excluding skirmishes, between two large conventional armies would be nuclear. It would be over very fast. Perhaps there is little to nothing to compare with WWII. A war in Europe could happen again but it would be quite different. The use of militarism and nationalism does not require a full scale global war. Certainly it is being used right now in several nations under structural duress. The…
A war in Europe could definitely happen, the outward unity belies the inner rivalries. There is also the option of civil war. Breakaway provinces wanna be nations, religious factions, old hatchets barely buried. The potential for war has never gone away.
It is true that there are a lot of rivalries, but nobody wants another world war. We are all fat, rich (relatively compared to 1939) and entertained, but more importantly there would be nothing to win and a lot to lose. The same goes for civil war - Scotland isn't going to war, nor is Catalonia. Northern Ireland is more peaceful than it has been in decades and no country is seriously oppressing any other country.
Even Putin isn't stupid enough to go into a NATO country, at least not the way he did in Ukraine.