The Strait of Hormuz — once the world’s most important oil shipping corridor — has become its most dangerous, as Iran’s ongoing blockade, tanker attacks, and mine threats combine to deter both commercial shipping and any would-be naval coalition from entering the waters. US President Donald Trump has called on the UK, China, France, Japan, South Korea, and all oil-importing nations to send warships to defend the passage, but no government has committed to doing so. The response reflects a sober assessment of the genuine military dangers any naval force would face in the region.
Iran launched its blockade of the strait in retaliation for US-Israeli airstrikes, cutting off a passage through which one-fifth of global oil exports ordinarily flow. The disruption has been called the largest in the history of the oil industry. Tehran has explicitly declared that tankers headed for American, Israeli, or allied ports are legitimate war targets and will be destroyed without warning. Sixteen ships have already been attacked. Iran’s threat to mine the strait further underscores the severity of the military environment any navy would be entering.
France was the clearest voice against intervention. Defence Minister Catherine Vautrin stated unambiguously that no French vessels would be dispatched to the strait while the conflict continued to escalate. President Macron had spoken of a possible future defensive escort mission, but conditioned it firmly on a reduction in fighting intensity. The UK said discussions were ongoing and mine-hunting drones were among the options being considered. The EU’s Aspides mission has been proposed for potential expansion to the strait, but Germany’s foreign minister expressed serious scepticism about the mission’s effectiveness and the value of extension.
Japan and South Korea — both among the world’s most oil-dependent economies — have declined to make military commitments. Japan’s ruling party official described the threshold for naval deployment as very high. South Korea pledged careful multi-angle review of available options before making decisions. Neither country has moved toward concrete action, reflecting the broad pattern of nations that are simultaneously under economic pressure from the blockade and under military deterrent pressure from Iran’s explicit threats against anyone who attempts to challenge it.
China, simultaneously an Iranian ally and a major Gulf oil consumer, is pursuing a diplomatic rather than military strategy. Beijing is reportedly in talks with Tehran about allowing tankers to pass, potentially offering a non-military path to partial relief. The Chinese embassy in Washington confirmed China’s commitment to constructive engagement and regional de-escalation. US Energy Secretary Chris Wright expressed hope that China’s diplomatic leverage with Iran could help restore access to the world’s most critical oil shipping route, while confirming that active dialogue with multiple nations was underway.