Nothing new
Machiavelli, and before him, Sun Tzu, taught that politics and war are deeply involved. War is a failure of the deeper diplomatic and counter-insurgency process.
The 20th-Century emphasis on total war and the war machine has hidden the deeper truths. Although we have heard the words "Hearts and Minds", you cannot capture or convert those by mechanised warfare. You must be in people's homes, not in a tank or an airplane...