The basic objectives and principles of war do not change.
The final objective in war is the destruction of the enemy's capacity and will to fight, and thereby force him to accept the imposition of the victor's will. This submission has been accomplished in the past by pressure in and from each of the elements of land and sea, and during World War I and II, in and from the air as well. The optimum of pressure is exerted through that absolute control obtained by actual physical occupation. This optimum is obtainable only on land where physical occupation can be consolidated and maintained.

Employment of Naval Forces (1948)