What is Full Spectrum Diplomacy?

Legal Definition
Full spectrum diplomacy is a combination of traditional, government-to-government diplomacy with the many components of public diplomacy as well as the integration of these two functions with other instruments of statecraft. The term was coined by Dr. John Lenczowski, the Founder and President of the Institute of World Politics in Washington, D.C. in his book Full Spectrum Diplomacy and Grand Strategy: Reforming the Structure and Culture of U.S. Foreign Policy which was released in May, 2011.
-- Wikipedia