I'm worried about WW1.2. In that war, we had all of these nations with powerful guns, planes, gas, tanks, all of these toys that they had never had, and they were eager to use them, and all thought that they had superior armament. We are now in a world where many countries have AI, drones, spaceships that can take down satellites, and new tech that generals are eager to use. That's the tinderbox, much more like the Great War than the Second War or what we thought would be the Third War.