Book excerpt: A fresh perspective renews Karen Mingst's classic, concise text. A new chapter on international cooperation and international law presents alternatives to war. A streamlined approach to theories and levels of analysis makes concepts easier to understand and apply. Expanded coverage of cybersecurity, refugees, health, and the environment asks students to grapple with the big issues of our time. And InQuizitive—an all-new digital learning tool—helps students learn, retain, and apply key concepts.