What is the primary reason countries go to war?

Answer 1

Because at some point, words have failed them.

Answer 2

They are not happy with each other.

Answer 3

There have been 1763 wars from 8000 BC to 2000 AD.

93% of them were secular/government related; 7% were religious (roughly half Islam half Christian).In the majority, secular wars, you’ll find causes such as territorial or economic gains as common forces.Revolutions are another cause.Sometimes it is a nation acting in defense of one of these factors.There’s never one simple reason.

Source(s): Oxford Research Encyclopedia, International Studies; “The Causes of War,” Adams. The Encyclopedia of Wars; Phillips, et al.