Today’s world is marked by the uneasy coexistence between traditional geopolitics and ever-widening globalization. A fundamental question undergirding the volume is how the United States cab be use its essential and yet insufficient influence in a world marked by both raising state power centers and the devolution of power into the hands of more non-state actors. Clearly, there is no simple prescription for the problem of how the United States can best exert its influence in this dynamic security landscape. Even so, the breadth of threats, challenges, and opportunities that may surface in the coming years will require a comprehensive approach that utilizes the full continuum of power be it hard, soft, smart, dumb, or fuzzy.