Naval War College Review


Why Wars Widen is a theoretical and empirical analysis of why neutral states choose to enter an ongoing great-power war. Most international-relations schol- arship neglects this question, choosing instead to explain the origins of war. Haldi, of both the Naval War College and Gettysburg College, opens her book with the observation that states entering an ongoing conflict “may have interests and policies entirely distinct from those of the initial combatants.” The book seeks to reveal these interests. Chapters 1 and 2 introduce the argument that neutrals are most likely to widen great- power wars in eras of low political cost, when war is limited and less threaten- ing to state survival. respectively, by then. Total energy con- sumption in 2025 for China, India, and South Korea is predicted to equal that of the United States. What do these fig- ures really tell us about today’s energy economy? The answers can be found in The End of Oil, in which Paul Roberts superbly navigates the complex topic of energy and explains how energy has become the currency of political and economic power.