How maritime chokepoints control the lifeblood of global trade and energy

Narrow straits, known as maritime chokepoints, play a crucial role in global trade. Around 90 percent of worldwide commerce travels by sea, making these routes some of the busiest—and most vulnerable—on Earth. Recent attacks by Iran-backed Houthi rebels in the Red Sea have highlighted how easily disruptions can ripple through the global economy. Some of the world’s most vital shipping lanes have long been targets of geopolitical control. The Bosphorus and Dardanelles, connecting the Mediterranean to the Black Sea, have been strategically important since the 19th century. Britain once secured key chokepoints like the Strait of Gibraltar and the Strait of Hormuz to protect its trade interests.

The Strait of Hormuz remains the most critical route for oil and gas today. Each day, 20 percent of the world’s oil and 15 percent of its liquefied natural gas pass through its narrow waters. Meanwhile, the Strait of Malacca, linking the Indian and Pacific Oceans, sees up to 2,000 vessels daily, making it one of the busiest corridors in the world.

Gulf nations rely heavily on these routes for their economies. Qatar, Bahrain, and the United Arab Emirates together produce 10 percent of the world’s aluminium, while Qatar alone supplies a third of global helium demand. Any threat to these lanes could cripple their exports. Disruptions at maritime chokepoints can have immediate and severe economic consequences. Even small-scale interventions by coastal states can block vital raw materials and goods from reaching global markets. The ongoing risks in these narrow straits continue to shape trade, security, and energy flows worldwide.