For the last two decades, leaders in London and Washington have become focused on operations in places like Sierra Leona, Bosnia, Iraq, Afghanistan, and now Syria, where the worry was, and is, weak and imploding states. But bigger trends are at play globally. We are seeing the return of great power politics – and with it, the risk of powerful states going to war. As in the past, it is perfectly possible that a third world war could start with a small event, or even by accident.
Mikhail Gorbachev is a great leader and man.However, he probably is wrong about this.This is because Trump will not start another big war as it is not in his interests. Trump may have a dominant personality, he is not foolish enough to start that will damage the US.Most of the harmful wars have been committed by accidents or were not foreseen.
There are several regions in the world where there is conflict, so the question of the world heading towards another big war is moot. A war is a war no matter it's scale. The big players, Europe (not the UK anymore), USA, China and Russia won't risk going to war as it would be futile and I suspect the Chinese would conquer the world if that happens.
The world is not heading for a major war. Although there is a lot of tension between countries, as Mikhail Gorbachev points out, the major ones know it would be mutually destructive. Instead, we will continue to have sharp disagreements and sanctions, but not a major military confrontation that leads to war.