Co-Director of the Marilyn Ware Center for Security Studies at the American Enterprise Institute, Thomas Donnelly analyzes the growing challenges to American primacy and explains why our “security, liberty, and prosperity seem to be at greater risk than at any time in a generation.” Considering mounting threats from Russia, China, the Middle East, as well as the consequences of nuclear proliferation, Donnelly argues that America has the resources to meet the challenges but today suffers from a lack of resolve. In sum, Donnelly makes a compelling case for continued American leadership in the world.