US, Gulf allies push UN sanctions threat against Iran over Strait of Hormuz

The United States and its Gulf partners have brought a new proposal to the United Nations Security Council, one designed to pressure Iran into releasing its grip on one of the world's most vital shipping lanes. The resolution, obtained by the Associated Press on Tuesday, threatens Iran with sanctions and other measures if it continues attacking vessels in the Strait of Hormuz, collecting what it calls illegal tolls from passing ships, and refuses to reveal where it has laid mines that obstruct safe passage.

The proposal also demands that Iran cooperate immediately with UN efforts to establish a humanitarian corridor through the strait—a passage meant to carry food, fertilizer, and other essential goods to populations in need. The language is specific and unambiguous about what compliance looks like, reflecting months of diplomatic tension over who controls access to a waterway that carried roughly one-fifth of the world's crude oil before fighting intensified in late February.

This new resolution arrives after a previous diplomatic attempt failed spectacularly. In early April, just hours before the United States and Iran announced a temporary ceasefire, China and Russia vetoed an earlier UN resolution aimed at reopening the strait. That rejection exposed deep fractures within the Security Council and raised questions about whether the body could act decisively on issues of global consequence. The Trump administration has now recalibrated its approach, removing language that would have authorized military enforcement and replacing it with explicit threats of sanctions instead. US Ambassador Mike Waltz told reporters on Monday that he believes this narrower framing will secure the necessary nine votes to pass the fifteen-member council without triggering a veto from Iran's allies.

Secretary of State Marco Rubio framed the stakes in stark terms on Tuesday, accusing Iran of holding "the world's economy hostage" through its control of the strait. He pointed to a pattern of behavior: threatening attacks on commercial vessels, laying mines in international waters, and attempting to extract payment from ships simply for passing through. Yet even as Rubio expressed optimism that the resolution would be voted on within days, he acknowledged uncertainty about whether the adjustments made to the text would prove sufficient to prevent a veto. The removal of Chapter 7 language—which would have allowed military enforcement—was meant to address concerns from countries wary of giving the Security Council a blank check for military action. But the resolution still carries the threat of "effective measures commensurate with the gravity of the situation, including sanctions," language that preserves the possibility of economic pressure if Iran refuses to comply.

One Security Council diplomat, speaking anonymously to the Associated Press, identified a persistent obstacle in these negotiations: the question of balanced condemnation. Previous discussions about Hormuz resolutions have foundered when some council members insisted that any language directly criticizing Iran also acknowledge strikes carried out by the United States and Israel. This demand for symmetry in how different parties' actions are described has complicated negotiations before and may do so again.

Rubio himself cast the vote as a test of the UN's fundamental purpose. Whether the resolution succeeds, he said, will reveal whether the organization functions as something capable of solving global problems or remains paralyzed by competing interests. The ceasefire between the United States and Iran remains fragile, and the outcome of this Security Council vote will signal whether diplomatic pressure can reshape behavior or whether the standoff over the Strait of Hormuz will persist as a chronic threat to global commerce.