3 June 2026

China and Maritime Chokepoints: Hormuz, Malacca, and Indo-Pacific Vulnerability

The Diplomat | Scott N. Romaniuk, Lรกszlรณ Csicsmann, and Amparo Pamela Fabe

The Strait of Hormuz became a focal point of regional tensions following United States and Israeli strikes on Iran on February 28, leading to heightened Iranian shipping restrictions and a blockade that renewed global concern over strategic maritime chokepoints, particularly the Strait of Malacca. While Hormuz is an energy chokepoint, Malacca is a network-dependent systemic trade chokepoint, linking the Indian and Pacific Oceans and critical for Middle East, Africa, and East Asia.

Disruptions in Malacca, which handles 23 million barrels of oil daily and four-fifths of China’s imported oil, would generate cascading systemic effects across energy and industrial supply chains. China's “Malacca Dilemma” underscores its vulnerability, prompting investments in naval modernization, BRI, and alternative overland routes like Gwadar and Kyaukphyu ports, and Eurasian rail links via Kazakhstan. These efforts mitigate but do not eliminate China's structural dependence on these vital maritime corridors, reflecting broader Indo-Pacific strategic competition.

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