The National Military Strategy of United States of America, 2011. Department of Defense, February 8, 2011

The ongoing shifts in relative power and increasing interconnectedness in the international order indicate a strategic inflection point. This requires America’s
foreign policy to employ an adaptive blend of diplomacy, development, and defense. While the strength of our military will continue to underpin national security, we must continuously adapt our approaches to how we exercise
power. Leadership is how we exercise the full spectrum of power to defend our national interests and advance international security and stability.