Can great powers ensure the political outcomes they want and prevent political developments they oppose, by stationing their military forces in distant regions during peacetime? If so, what kinds of military capabilities yield this sort of peacetime political leverage? And what kinds of political goals can-and, just as importantly, cannot-be achieved through "forward military presence?" In the post-9/11 world, as the United States seeks to use its unrivalled global military predominance to build a safer, better world by preventing terrorism and encouraging societies around the world to...