From the Introduction: "Our national security strategy is therefore based on enlarging the community of market democracies while deterring and limiting a range of threats to our nation, our allies and our interests. The more that democracy and political and economic liberalization take hold in the world, particularly in countries of strategic importance to us, the safer our nation is likely to be and the more our people are likely to prosper. [...] To that broad end, the three central components of our strategy of engagement and enlargement are: (1) our efforts to enhance our security by maintaining a strong defense capability and employing effective diplomacy to promote cooperative security measures; (2) our work to open foreign markets and spur global economic growth; and (3) our promotion of democracy abroad. It also explains how we are pursuing these elements of our strategy in specific regions by adapting and constructing institutions that will help to provide security and increase economic growth throughout the world."
Defense Technical Information Center (DTIC): http://www.dtic.mil/dtic/