Iran closes Hormuz and strikes the Gulf after being attacked by the USA

While Tehran claims control of the strait, Washington interprets that it must be open to navigation

A man walks next to a symbolic model of an Iranian missile in Imam Hussein Square in Tehran.
Upd. 15
3 min

BeirutSirens have sounded again this Sunday in several Gulf countries as the United States and Iran took a new step in an escalation that threatens to squander the fragile Memorandum of Understanding signed just weeks ago between Washington and Tehran. After a third wave of American bombings against more than 140 Iranian military targets in the past few hours, Tehran has responded with a coordinated offensive against American military installations in the Gulf. It has struck Qatar, Bahrain, Kuwait, Oman, and Jordan with missiles and drones, while also announcing the closure of the Strait of Hormuz, the artery through which around 20% of the world's traded oil and liquefied natural gas passes.

The exchanges began when Washington launched a wave of attacks against Iranian territory, which the United States Central Command (Centcom) justified as a measure to "degrade Iran's capability," after Tehran bombed a Cyprus-flagged container ship navigating an unauthorized route in the Strait of Hormuz. Iranian media have reported explosions in various parts of the country, including cities in Bushehr province (southwest), which houses a nuclear power plant, and also several localities near Hormuz.

Iran was quick to respond and struck the regional network of bases and infrastructure that supports Washington's military presence in the Gulf. Tehran has claimed responsibility for attacks on logistics centers and military support platforms in Oman, American defense systems and radars in Kuwait and Bahrain, and Prince Hassan Air Base in Jordan. In Qatar, missiles targeted Al Udeid Air Base, one of the largest American military installations in the region. Doha says it intercepted the projectiles, although three people were injured by fragments.

Tehran has announced the closure of the Strait of Hormuz, key to global trade, until "the end of US interference in this region." But Washington assures that the strait remains open and that its forces are prepared to guarantee freedom of navigation. The Joint Maritime Information Center has confirmed that the southern maritime corridor remains operational, although it has raised the threat level to "severe" due to the risk to ships.

A memorandum of misunderstanding

The immediate trigger for this new escalation has been the Iranian attacks on several commercial ships sailing through the Strait of Hormuz and the subsequent military response by the United States. But the origin of the crisis goes back further. It dates back to the Memorandum of Understanding signed last June, a document that was supposed to open a sixty-day negotiation to end the war, limit Iran's nuclear program, and reduce tensions on all fronts in the region.

The Iranian position was summarized this Sunday by the President of Parliament and one of the main negotiators of the agreement, Mohammad Bagher Ghalibaf. "The era of unilateral agreements is over. We told them to keep their word or they would pay the price," he wrote along with an image of Article 5 of the Memorandum with the phrase "the Islamic Republic of Iran will take the necessary measures." It was not a casual reference. It was a way of pointing to the specific point on which, according to Tehran, the entire current crisis rests.

Article 5 stipulated the reopening of the Strait of Hormuz and committed Iran to guaranteeing navigation safety during the negotiation period. For the United States, this commitment meant restoring freedom of navigation and preventing any interference on a route through which one-fifth of the world's energy transits. Iran, on the other hand, understood that the text recognized its central role in the management of the strait and that, once the transitional period concluded, any navigation mechanism had to be negotiated with Oman, the other riparian state.

The importance that Iran attaches to this corridor was also summarized by Mohsen Rezaei, military advisor to the supreme leader, who stated that "the Strait of Hormuz is more important than dozens of atomic bombs." The statement goes beyond rhetoric. It reflects an idea that has been gaining weight within Iranian strategy after months of war: if the Islamic Republic cannot guarantee its own security, it will not allow the rest of the region to enjoy stability as if the conflict did not exist.

More than a dispute over navigation, what is emerging is a struggle to decide who sets the rules of the game in the Gulf. The United States insists that freedom of navigation cannot be subject to conditions or restrictions. Iran maintains that the security of the strait cannot be managed apart from its interests and claims a decisive role alongside Oman. These are two visions that are difficult to reconcile and that the Memorandum of Understanding never managed to resolve.

On paper, the ceasefire remains in effect. Neither of the two parties has officially announced its rupture and the deadline for negotiating a definitive agreement remains open. But the attacks of recent days have revealed the contradictions. The waters of Hormuz have reopened to commercial traffic, but the strait remains politically closed. What is blocked is not only a maritime route, but the understanding between Washington and Tehran on the rules that should govern one of the world's most strategic passages.

stats