Monsoon: The Indian Ocean and the Future of American Power

Kaplan argues that the Greater Indian Ocean—stretching from the Horn of Africa to the Indonesian archipelago—is becoming the defining geopolitical theater of the twenty-first century, replacing the Atlantic and Europe as the locus of great-power competition. He rejects the assumption that the post-Cold War era's land wars in Iraq and Afghanistan should remain America's primary strategic focus, contending that the future is maritime and that the Indian Ocean's energy routes and choke points are the true 'silk roads' of the coming century.

Kaplan introduces 'Monsoon Asia' as a strategic region encompassing India, Pakistan, China, Indonesia, Burma, Oman, Sri Lanka, Bangladesh, and Tanzania—unified not by institutions but by the monsoon's historic trade winds and the Indian Ocean's contemporary shipping lanes. He contends this region now constitutes the world's 'global energy interstate' and the most nuclearized ocean, where U.S., Chinese, Indian, and Pakistani navies all operate. Analysts now routinely invoke 'Monsoon Asia' when discussing Indo-Pacific strategy, even as the term remains contested for its geographic breadth.

Monsoon is a hybrid travelogue and strategic primer focused on a single ocean basin, while The Revenge of Geography (2012) is a broader theoretical rehabilitation of classical geopolitics as a lens for understanding world politics generally. Monsoon's argument is regionally specific: it contends the Indian Ocean is the fulcrum of twenty-first-century rivalry. The later book generalizes from this and other cases to argue that geography constrains state behavior everywhere. Monsoon preceded The Revenge of Geography and provided its most detailed empirical case study.

Kaplan acknowledges that the U.S. Navy's relative advantage is eroding as India and China expand their fleets, but he argues this need not mean catastrophic loss of influence. His concept of 'elegant decline' holds that the United States can preserve its role as the region's indispensable balancer by fostering naval cooperation among rising powers rather than trying to maintain hegemony alone. The U.S. Navy would continue protecting the maritime commons while welcoming the growth of allied and partner navies. Critics note this prescription assumes China and India will accept American leadership indefinitely.

Kaplan had previously been associated with pessimistic forecasts—The Coming Anarchy (1994) predicted global disorder, and Balkan Ghosts (1993) warned of ancient hatreds. In Monsoon, he argues that Asian investment may develop Africa, ethnic conflicts may soften as democracy takes hold, and China and India will compete more with soft power than hard power since territorial expansion is an option for neither. Hugh White of The Monthly observed that Monsoon's subtext is the waning of U.S. dominance, making its relatively upbeat tone 'a very different view' from Kaplan's earlier predictions of American primacy.

Kaplan's forecast has proven broadly accurate in outline. Both navies have expanded, and strategic competition over ports, influence, and sea lanes has intensified. However, critics note he understated the degree of Sino-Indian economic interdependence and the possibility of cooperative outcomes. Robert Killebrew noted that Kaplan's assertion that China's economic growth should concern the U.S. ignores the fact that America remains China's top trading partner. The prediction of rivalry without war has held, but the mechanisms Kaplan identified—energy security, port access, naval expansion—have proven only partial explanations.