'War as an Instrument of Policy'

Today I was reading a part of Carl Von Clausewits' masterpiece, 'On War.'
In the book8 ,Plan of War, Chapter6 presents Clausewits' most famous argument that is about 'war is nothing but a continuation of political intercourse.'

He says in his book that people usually tend to think that War is derived from the disagreement of bargaining. However, War is a continuation of political intercourse because war is a part of politics, and just like he says, the instrument of policy.

Here I note that we really have to remember that war is not a single consequence at all. In addition, Clausewitz asserts that wars are representative of the interests of the whole community and manifestations of policy in a country.