From a brilliant Brookings Institution expert, an “important” (The Wall Street Journal) and “penetrating historical and political study” (Nature) of the critical role that oceans play in the daily struggle for global power, in the bestselling tradition of Robert Kaplan’s The Revenge of Geography.For centuries, oceans were the chessboard on which empires battled for supremacy. But in the nuclear age, air power and missile systems dominated our worries about security, and for t