David Armstrong is Professor of Global Politics at the University of Buckingham and Emeritus Professor of International Relations at Exeter University. Theo Farrell is Professor of War in the Modern World at King's College London. Hélène Lambert is Professor of International Law at the University of Westminster.

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• Preface to the second edition; Introduction; Part I. The Foundations: 1. The nature of international law; 2. The evolution of international law; 3. Three lenses: realism, liberalism and constructivism; Part II. The Law in World Politics: 4. Use of force; 5. Human rights; 6. International crimes; 7. International trade; 8. The environment; Part III. Conclusions: 9. Law and power in an evolving world order.

David Armstrong is Professor of Global Politics at the University of Buckingham and Emeritus Professor of International Relations at Exeter University. Theo Farrell is Professor of War in the Modern World at King's College London. Hélène Lambert is Professor of International Law at the University of Westminster.

Select Guide Rating

• Preface to the second edition; Introduction; Part I. The Foundations: 1. The nature of international law; 2. The evolution of international law; 3. Three lenses: realism, liberalism and constructivism; Part II. The Law in World Politics: 4. Use of force; 5. Human rights; 6. International crimes; 7. International trade; 8. The environment; Part III. Conclusions: 9. Law and power in an evolving world order.