This fits perfectly with the Grand Strategy of the United States. It is the result of factors that shape a nation indelibly and cannot be changed. A nation's geography, climate, terrain, all shape the needs and fears of its people. The United States has a grand strategy that has been pursued ruthlessly since its founding. This has led to its great success as a nation.
Strategy goes beyond ideology politics or morals.
Grand strategy results from necessities imposed on a nation if it is to exist as a nation. Consider, the US occupies a certain geographical position. The world is round. These are the eastern and western hemispheres respectively. The east is larger, more populous, and richer, although on a percapita basis the west is richer.