What are the causes of war, especially modern war?
There are two main types of wars in modern times (let us say that “modern” means since the end of the Cold War). There are wars within or between small countries and there are wars between large countries and small countries. There are different causes for these two kinds of wars.
Wars within or between small countries are typically caused by some combination of ethnic tensions, religious tensions, oppressive government, and a desire for resources. For...
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The answer of this question can be very long in discussion.
But I would like to share just in one line- Today the meaning and reason of war is as parallel to the meaning of word "Crook".