The geographical perspective of the 21st century is just now being formed. And at its heart is a rivalry between China and the United States to succeed Europe’s 500-year centrality in the international system, which will be framed by a shift in global economic activity and trade, new energy resource competition, a weakening Europe and Russia, and a technological battle to control information. The new map of the next century will extend to the ocean floor for resources and subsea cables, to space where low-Earth orbit satellites drive communications, and into the ill-defined domain of cyberspace. ...