Trump’s energy obsession vs. the real source of sea power

Trump’s fixation on energy dominance – record oil and gas production, expanded LNG exports, aggressive deregulation – captures a real truth: cheap energy fuels prosperity and leverage. But it risks missing history’s deeper lesson about what actually makes sea powers strong.

Maritime nations like Britain, the U.S., and imperial Japan built lasting power not by possessing energy, but by mastering its flow – chokepoints, shipping lanes, trade networks, and financial clearing systems. By prioritizing tariffs and “America First” trade barriers, Trump’s policies may erode that circulatory advantage, handing leverage to land powers rich in reserves.

Sea power: the mastery of flows

Alfred Thayer Mahan argued that control of the seas determines national greatness. Sea powers secure chokepoints – Malacca, Suez, Hormuz, Gibraltar – and project influence through navies protecting merchant fleets, not territorial conquest.

Britain didn’t hold the world’s largest resource pools; it dominated their movement. The Royal Navy, coaling stations, and sterling clearing in London let Britain circulate goods and capital while denying rivals the same. The U.S. inherited this model post-1945: the Navy guaranteed free navigation, the dollar anchored energy trade, and Bretton Woods managed global flows. Land powers like Russia and China hold vast reserves but struggle with global distribution. Their strength is static; sea powers’ strength is networked.

Energy matters – but its movement multiplies power. A barrel in the ground matters less than one delivered reliably through secure lanes and dominant clearing systems.

Trump’s energy-centric lens

Trump has made energy dominance central to his second term – emergency declarations, deregulation, record output (13.6 mb/d in 2025), and the National Energy Dominance Council. The merits are real: cheap energy underpins manufacturing, AI infrastructure, and military projection, while U.S. shale leadership reduces reliance on hostile suppliers.

But framing every issue through domestic production risks treating energy as an end rather than an input. Tariffs and reshoring mandates slow the very circulation that historically amplified U.S. advantages. Sea powers succeed by facilitating flows, not walling them off.

Tariffs as self-imposed blockade

Broad tariffs disrupt trade velocity and encourage alternatives – China’s Belt and Road corridors, rival payment systems – routing commerce away from U.S.-influenced networks. When trade shrinks or reroutes, advantage shifts toward land powers holding reserves and labor. Sea powers optimized for oceanic globalization lose more when the ocean contracts and chokepoints are blocked.