The book discusses how different countries view global security rules after the Cold War. Russia, China, and France prefer all enforcement to be approved by the Security Council, while the US and Britain believe some countries can enforce rules on their own. By looking at case studies, the author shows that these differences have caused tensions in the Security Council. The events of 9/11 made these tensions worse, but didn't create them. The book is useful for students and researchers studying American foreign policy and international organizations.