Absolute war

The concept of absolute war was a philosophical construct developed by the military theorist General Carl von Clausewitz. This concept was featured in the first half of the first chapter of his most famous book, On War. In it, Clausewitz explained that absolute war is a philosophical abstraction--a "logical fantasy"--that is impossible in practice because it is not directed or constrained by political motives or concerns, nor limited by the practical constraints of time or space. He called warfare constrained by these moderating real-world influences real war.

In his explanation of absolute war, Clausewitz defined war as "an act of violence intended to compel our opponent to fulfill our will". However, war itself does not contain inherent moral or political aspects. These conditions (for instance, the laws of armed conflict) are placed on war by those who fight it, and exist because the intelligence of the civilized nations involved exercises greater influence on their methods of fighting war than does their instinctive hostility.