Designed to complement the main themes of any introductory course, Snow's bestselling text presents original case studies that survey the state of the international system and look in-depth at issues of current interest. The cases are extremely timely, geopolitically diverse, accessibly written, and of high interest and salience amidst today's headlines. New examples include U.S.-Mexican border relations, ending the Syrian civil war, the responsibility to protect (R2P), the fate of the Kurds, cybersecurity, new international trade agreement (successor to NAFTA), shifting power in the Middle East, the post-ISIS threat, and others.