One of the most common criticisms of current U.S. security policy is that it lacks an overarching strategy, leading to a tendency to address problems and crises individually and in isolation as they arise. This study provides a broad description of the contemporary global security environment and an examination of U.S. security policy since the end of the Cold War. Traditional threats, such as those associated with major theater war, now coexist with newer nontraditional threats. The authors maintain that a sound strategy must support the ability of a country to hedge and adapt to a highly...