The worst oil supply disruption in recorded history is unfolding at the Strait of Hormuz, and the international community has yet to mount a credible military response despite direct appeals from President Donald Trump. Trump called on the UK, China, France, Japan, South Korea, and all oil-importing nations to send warships to the blocked waterway — asserting that many were already planning to do so. But each of those governments has responded with deliberate vagueness, cautionary language, or outright refusal, leaving Iran firmly in control of the world’s most critical oil passage.
Iran’s blockade of the strait was launched in retaliation for joint US-Israeli airstrikes and has now cut off roughly one-fifth of global oil exports. Tehran has threatened to destroy any tanker bound for American, Israeli, or allied ports, calling such vessels legitimate military targets. Sixteen ships have been attacked since the conflict erupted in late February. Iran has also raised the possibility of mining the strait, adding another layer of danger to an already hazardous situation for any navy considering escort operations.
France stood out among potential allies in making the clearest possible refusal. Defence Minister Catherine Vautrin stated that it was out of the question to send any vessels to the strait while the conflict continued to escalate. French President Macron had previously spoken of a purely defensive escort mission in the region, involving both European and non-European partners — but only after the most intense phase of fighting had concluded. The UK confirmed discussions were ongoing about options including mine-hunting drones. Germany was doubtful about expanding the EU’s Aspides mission, with its foreign minister calling the existing operation ineffective.
Japan and South Korea are facing severe economic pressure but have declined to offer military support. A senior Japanese lawmaker said naval deployment was legally conceivable but practically subject to a very high threshold. South Korea said it was reviewing the situation and exploring various protective measures for its citizens and energy supply. The combination of active Iranian threats, lack of US naval escort presence in the strait, and the absence of a clear multilateral framework has made every potential contributor deeply reluctant to act.
China’s response to the crisis has been entirely framed in diplomatic terms. Beijing, which depends on Gulf oil for a significant share of its energy needs and maintains close ties with Tehran, is reportedly in backchannel discussions with Iran about permitting safe passage for tankers. The Chinese embassy’s statement emphasised communication and a constructive role in achieving peace. US Energy Secretary Chris Wright expressed optimism about China’s willingness to act constructively, while noting that dialogue with multiple nations was already underway about restoring normal conditions at the world’s most important oil chokepoint.