Iran has asserted a new ability to block or shut down the Strait of Hormuz using its nuclear program as a strategic tool.

This development threatens global energy stability because the narrow waterway is a primary artery for international oil shipments. Any prolonged closure could trigger severe economic volatility and disrupt supply chains across Asia and Europe.

Approximately 20% of global oil passes through the Strait of Hormuz [1]. According to a U.S. intelligence assessment, Iran now possesses the capability to shut down the waterway at will [2]. The Iranian government is leveraging this chokepoint to exert pressure on the U.S. and Israel amid ongoing regional tensions.

"Iran has gained a new source of leverage over the global economy, and it’s not about to give it up," CNN analysis said [1].

U.S. officials and political figures have offered differing views on the current state of the crisis. Donald Trump said in a post on Truth Social that the blockade will end soon [3]. However, the Iranian military maintains that the U.S. is not acting in good faith during negotiations.

"The United States is negotiating in bad faith," an Iranian military spokesperson said [4].

The Strait of Hormuz, located between Iran and Oman, connects the Persian Gulf with the Gulf of Oman [1, 5]. The ability to control this passage allows Iran to influence global energy markets by restricting the flow of petroleum to the open ocean.

“"Iran has gained a new source of leverage over the global economy, and it’s not about to give it up."”

The shift in Iran's strategic capabilities transforms the Strait of Hormuz from a traditional military chokepoint into a tool of nuclear-linked diplomacy. By linking its nuclear program to the ability to disrupt 20% of the world's oil supply, Tehran is increasing the cost of sanctions and military pressure from the U.S. and Israel, effectively tying global energy prices to the outcome of regional security negotiations.