Used wisely, America's immense military power can preserve freedom but used unwisely, it can fracture global stability. Stefan Halper and Jonathan Clarke argue, that as long as neo-conservative radicals dominate the nation's national security process, fracture is more likely. Assuming Americans will see increasing threats in the future, this book is important because it identifies the factions and agendas involved. It advocates an alternative approach based on a return to the mainstream principles that have successfully guided American diplomacy for half a century. years.