Iran fired at least two missiles at cargo ships in the Strait of Hormuz on July 6, 2026, according to reports cited by Reuters. This happened just eleven days after the U.S. and Iran agreed to stop fighting and talk about who can pass through the strait—the world's most important waterway for oil shipments.

Maritime authorities had already flagged the problem. The UK Maritime Trade Operations center issued a warning on July 5 about an attack in the strait, a day before the missile strike was reported (UKMTO). An earlier incident had also occurred: in March 2026, a tanker called SKYLIGHT was hit by a projectile while anchored in the strait, causing a fire. This means Iran has been attacking ships for months, not just in the past few weeks.

The July 6 attack is part of a larger pattern of confrontation. On June 25, Iran struck a container ship named M/V Ever Lovely as it traveled through the strait, an action both the U.S. and Iran confirmed (The New York Times). Hours before the attack, Iran had warned ships not to enter the strait without its permission. This was not a surprise attack—it was enforcement of a rule Iran was trying to impose (NPR).

The U.S. hit back hard. American forces struck Iranian weapons storage sites and radar installations along the coast, and military officials said this was payback for the attack on Ever Lovely (CENTCOM). President Trump said Iran's strike was "foolish." Through June 27, both sides kept striking each other, but they also kept talking (The New York Times). By the end of that day, both governments agreed to pause the fighting and negotiate (Reuters).

This conflict did not start last month. In May, the U.S. shot down Iranian missiles and drones aimed at American ships in the strait (The New York Times). In April, the U.S. began mine-clearing operations in the strait on April 11 and announced a blockade of Iranian ports the next day—meaning no ships could enter or leave Iran's harbors (CENTCOM). Mine-clearing suggests American leaders thought Iran might have placed mines to block the waterway, a more serious threat than missiles alone.

The crisis got worse in June. The UN's main maritime agency paused its effort to evacuate ships from the strait after the June 25 attack (NPR). When evacuation experts say conditions are too dangerous even to pull ships out, the situation is grave—it means fighting could erupt at any moment.

It is unclear whether the cease-fire holds. Neither the U.S. nor Iran has said the July 6 strike breaks their agreement. The strait carries about one-fifth of the world's oil supply. This year's events—the March ship attack, the April blockade, the May missile shots, and the June back-and-forth strikes—show this is not a one-time crisis. Instead, Iran and the U.S. are locked in a contest over who controls the strait. Each time fighting pauses, peace does not last, and the July 6 attack suggests the real dispute—over who gets to decide who passes through—has not been solved.