Singapore's top diplomat warns against Iran gaining 'veto right' over Strait of Hormuz

Foreign Minister Vivian Balakrishnan says Trump is not 'completely wrong' that disruption hits Asia hardest, but freedom of navigation is 'non-negotiable'

By LineZotpaper
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Singapore Foreign Minister Vivian Balakrishnan has said US President Donald Trump's suggestion that keeping the Strait of Hormuz open is Asia's problem holds some merit, but warned against allowing Iran to gain effective veto power over the critical waterway. Speaking at the Milken Institute's Asia Summit in Singapore, Balakrishnan stressed that freedom of navigation through international straits is an existential issue for the city-state.

Singapore Foreign Minister Vivian Balakrishnan said Wednesday that US President Donald Trump is not completely wrong in suggesting that disruption to energy flows via the Strait of Hormuz is primarily Asia's problem. Asian economies are among the largest customers of oil shipped through the narrow waterway connecting the Persian Gulf with the Arabian Sea, making any prolonged disruption particularly consequential for the region.

Trump has previously argued that Asian nations should shoulder more of the burden of keeping the strait open rather than relying predominantly on US protection, stating that the US does not use the strait and does not need it, but that Europe, Korea, Japan and China do.

Balakrishnan cautioned against viewing the issue solely through the lens of who buys the oil, stressing the importance of maintaining freedom of navigation through international waterways. For Singapore, he said, that principle is "non-negotiable" under the United Nations Convention on the Law of the Sea, which guarantees rights of transit passage.

The minister highlighted that Iran's attempts to assert greater control over traffic through the strait go beyond potential revenues from tolls and fees. From Tehran's perspective, the ability to charge vessels could effectively establish its right to determine which ships are allowed through, giving Iran what Balakrishnan described as a potential "veto right" over Hormuz. That power, he said, could provide Tehran with "greater leverage right now than even a potential nuclear weapon."

Balakrishnan said he does not expect the US or Gulf states to tolerate a situation in which Iran held such veto power, suggesting tensions could persist even if oil continues flowing. "I think there will be a lot of pushing and shoving the next few months," he said, adding that he does not see a quick diplomatic off-ramp to the conflict.

In April, Balakrishnan warned that a US-China conflict in the Pacific could make the disruption seen in the Strait of Hormuz look like a "dry run," underscoring the vulnerability of global trade to critical maritime chokepoints. He has maintained that Singapore would refuse to choose between Washington and Beijing, acting according to its own long-term interests, and would uphold freedom of navigation through the Strait of Malacca.

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Analysis

Why This Matters

  • The Strait of Hormuz is a critical chokepoint for global energy supplies: about a fifth of the world's oil passes through it. Any sustained disruption would spike energy prices and hit Asian economies hardest.
  • Singapore's position as a small, trade-dependent city-state makes it a bellwether for maritime security concerns. Its insistence on freedom of navigation reflects wider anxieties among middle powers about great-power competition and unilateral control of sea lanes.
  • The debate shifts the burden of maritime security: if the US disengages, Asian nations may need to invest in their own naval capabilities or accept greater vulnerability.

Background

The Strait of Hormuz is a narrow waterway between Iran and the Arabian Peninsula, connecting the Persian Gulf to the Gulf of Oman and the open ocean. It has long been a flashpoint in US-Iran tensions. Iran has periodically threatened to close the strait or harass shipping to exert pressure. The US Fifth Fleet has traditionally patrolled the area, guaranteeing free passage. Trump's presidency has seen a push for allies to contribute more to their own defence, including in the Gulf.

Key Perspectives

Singapore and maritime trading states: Freedom of navigation is an existential national interest. Singapore relies on open sea lanes for its economy and refuses to choose between the US and China, but insists on upholding international law. Iran: Controlling access to the strait gives Tehran enormous leverage, both economic and strategic. It may seek to transform de facto control into a recognised right to toll or veto passage. United States: Under Trump, the US has signalled it expects Asian energy consumers to bear more of the cost and risk of securing the strait, while maintaining that it will not cede free passage. Critics/Skeptics: Some analysts argue that Iran's threats are mostly bluff and that it cannot afford a prolonged closure without devastating its own economy. Others warn that even limited Iranian harassment could trigger a broader conflict with the US and Gulf states.

What to Watch

  • Whether Iran begins systematically demanding tolls or imposing inspections on vessels transiting the strait.
  • US naval posture in the Gulf and any announcements of drawdown or increased allied burden-sharing.
  • Diplomatic moves: France, the UK and other European nations have their own interests in the strait. Joint patrols or coalition proposals may emerge.
  • Oil price volatility: even a small perceived risk can lift prices, affecting global inflation.

Sources

Zotpaper

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