What was the Bush administration's National Security Strategy (aka the Bush Doctrine)?

"The document [National Security Strategy] is significant as the first official elaboration of a variety of post–September 11 changes in the direction and tone of U.S. security policy...

Special prominence is given in the strategy to dealing with the threats posed by terrorists and rogue states, though it also focuses on defusing regional conflicts, preventing threats from weapons of mass destruction, developing cooperative actions with other major powers, and expanding economic growth and the infrastructure of democracy. This National Security Strategy makes clear that the United States will maintain its position of preeminent economic and military power as the means of promoting 'a balance of power that favors freedom.' Where it departs from the past strategies is in its clear statement of the intention of the United States to act alone, if necessary, and to act militarily and preemptively against terrorist groups or rogue states amassing weapons of mass destruction.

The strategy does not envision that U.S. interests and general stability can be safeguarded without the presence and sometimes active application of American political, economic, and military power worldwide. Thus, embodied in the strategy is a clear expansion of the demands placed on the military, in responding to terrorism abroad and ensuring the security of the American homeland, in maintaining American preeminence as a military power, and in preempting attacks against the United States by terrorists and rogue states, particularly attacks that might involve weapons of mass destruction."