Yugoslavia is a recent example. Karl Von Clausewitz was one of the first to study and write about war. His work drew from a lifetime of experience and was published in 1831. He defined war as a duel on a grander scale. EAch seeks by physical force to overthrow the other, render him incapable of further resistance and compel his opponent to do his will.
War is an act of force and there is no limit to the application of that force.
We talked last week about Machiavelli writing in 1514 wrote ' the main foundations of every state, new states as well as ancient or composite ones, are good laws and good arms. And such a warre as if of every man against every man. Diplomacy is the political contact between governments of different states. Takes place at two levels. Argument that diplomacy does not prevent wars but might limit them.