After Gavrilo Princip assassinated Archduke Franz Ferdinand of Austria in Sarajevo, Bosnia, the Austrian government invaded the Kingdom of Serbia. Famously named as the Serbian Campaign of World War I, the Austrian government marched up with hundred of thousands of soldiers and invaded the Kingdom of Serbia thus, started the World War I.
Answer: B. lack of focus on individuals
Answer:
If WW3 were to happen it would remain as a conventional war without the use of WMDs. The major nuclear powers (US, UK, France, Russia, and China) will do whatever they can to ensure that nukes don’t get used.
At best, it will be a conventional war that has all the participants keep the scope of their military actions limited.
At worst, it goes nuclear and the map gets redrawn in a big way as many national governments cease to exist and their nations collapse. Fortunately we’re no longer capable of wiping ourselves out. A lot of people will die, but it won’t result in the extinction of humanity.
Wars start through any number of pathways: One world war happened through deliberate action, the other was a crisis that spun out of control. In the coming decades, a war might ignite accidentally, such as by two opposing warships trading paint near a reef not even marked on a nautical chart. Or it could slow burn and erupt as a reordering of the global system in the late 2020s.
Making either scenario more of a risk is that military planners and political leaders on all sides assume their side would be the one to win in a “short” and “sharp” fight, to use common phrases. It would be anything but.
A great power conflict would be quite different from the small wars of today that the U.S. has grow accustomed to and, in turn, others think reveal a new American weakness.