Four major world issues—war and peace, proliferation of nuclear weapons, global energy, and global environment—are analyzed from an interdisciplinary perspective within the context of post-World War II World politics. This is the first and only book on world politics that provides in-depth analyses of major world issues from the perspectives of both interdisciplinary and relational or systems thinking. Contents: The Concept of Systems: Dealing with Complexity; Systems in International Affairs; Relations in the International System; Issues of War and Peace; The Proliferation of Nuclear Weapons; Energy and the Life of Nations in a Global Context; The Global Environment.