Pat Buchanan, former US presidential candidate has his eye on the Ukraine conflict which could fast evolve into World War III. The spark, or is it explosion, which will set this off is if Putin, after successfully crushing the Ukraine, which seems likely, then thinks he is on a roll and decides to take out Finland next. Finland was invited to join NATO at the NATO summit in Madrid, so if Finland is attacked in the future, NATO will be immediately involved. If they do not act, this would show that the NATO treaty is worthless and NATO is a toothless tiger, and Putin will roll over Europe, maybe swallowing up diverse Sweden. Would the migrants be happy with this, and stay around to celebrate? Buchanan makes a strong case that this is madness, but widespread conflict, including nuclear, may be inevitable. Call it inevitable madness.
https://buchanan.org/blog/is-a-us-russia-war-becoming-inevitable-159511