New features-An entirely new set of chapters reconsider the topics covered in previous editions
-Chapters 1, 4, 5, 6, and 7 on territorial disputes, arms races, rivalry, nuclear weapons, and the outcome and consequences of war provide an update of new research in the last decade
-Chapter 2 on power focuses on power transition theory and the respective role of power preponderance versus parity
-Chapter 3 on alliances focuses on the condition under which deterrence might work
-Chapter 8 on the democratic peace is expanded to include all of the liberal peace
-Chapters 9, 10, and 11 explore new topics: the territorial peace, how peace emerges, and the peaceful resolution of disputes
-Part III, Chapters 12–16, on emerging trends in interstate research on war, is an entirely new section that analyzes current research on cyber war, the environment, the role of leaders, war financing, and trends in conflict