The National Security Strategy is required by the Goldwater-Nichols Department of Defense Reorganization Act and explains the administration's security issues and the strategies for addressing them. All strategies from 1987 are available on the National Security Strategy Archive.
The 2002 National Security Strategy from the George W. Bush Administration revealed a shift in the U.S. Government's former strategy of deterrence to a pre-emptive strategy toward terrorism and rogue states. Issues include terrorism, regional conflicts, weapons of mass destruction, free trade, the building of partnerships, and plans for national security institutions.
The 2006 National Security Strategy declared its intent to "seek and support democratic movements and institutions in every nation and culture, with the ultimate goal of ending tyranny in our world."