World War III is inevitable because humans are selfish, have control issues, and power hungry as well as want other peoples stuff [like land, resources, and power].
History supports the concept that all humans know is war, violence, and horrid behavior to get their position in the World.
However, we are in 2023 now and going beyond and should learn that this direction for the future is stupid as now humans have weapons that can now destroy the World. Enough countries have such weapons and developing new more powerful ones that anyone using such weapons would not actually win anything and would also be destroyed. They do not seem to know that it is not going to be a one sided war which they can win and be OK and in charge of the World. They do not seem to know that the World that would be left to rule, would be so contaminated and ruined that it would not be a reasonable place to exist. They do not seem to care about their own citizens, themselves, or their children or their future life existence, if any.
This is 2023 and things of the past as well as methods of the past are no longer acceptable. ALL countries should live in the century they are now in and culture they are now in and stay within their current borders. Any country should be their own and not reclaimed because of past history. Humans should help each other not destroy each other.
Humans have trouble ruling and leading their own currently existing country without trying to take over other countries.
Bottom line — Knowing humans, their methods, and goals, we [all humans] should have a mind set that World War III is going to happen and be prepared to deal with it [or the death from it]. The few that might survive it alive will need the mind set that the World will not be a good place to live after World War III.
Personally, I am tired of being threatened with nuclear war and just accepting that we are headed toward it. Those who threaten usually [eventually] do what they are threatening to do because they have already decided to do so.