The United States cannot control the Strait of Hormuz

What's this about?

People disagree about whether the United States can control the Strait of Hormuz, a key sea route for oil ships.

The answer depends on whether “control” means reopening it after war or keeping it safe forever.

What supporters say

• The United States and its friends have strong ships, planes, sensors, and weapons for sea fights.
• Past fights show that U.S. forces can beat major Iranian sea forces and guard groups of trade ships.
• A large U.S.-led force could likely clear a usable path after Iran tried to block the strait.
• Sea rules support ships traveling through this kind of shared waterway, even if no country owns it.

What critics say

• The United States could not promise safe travel every day, forever, with no fight or risk.
• Iran could use mines, missiles, small boats, and attacks on trade ships to make travel hard.
• Clearing mines and guarding ships would take time, money, and many forces.
• Even strong escorts could lower danger without removing every threat to ships.

The bottom line

The United States could likely fight to reopen the strait and protect some shipping after a crisis.

But it could not fully control the waterway or guarantee safe, nonstop travel forever.

The claim that the United States “cannot control” the Strait of Hormuz depends on what control means. Washington could likely fight its way back into the waterway and reopen shipping after a crisis, but it could not reliably guarantee permanent, uninterrupted and uncontested passage.

The case for

The United States has clear advantages in a conventional naval fight. Its forces, especially alongside allied partners, have the surveillance, strike, escort and mine-countermeasure capabilities needed to challenge Iranian naval forces, missiles and harassment campaigns. Historical operations offer support: during Operation Praying Mantis, U.S. forces rapidly defeated major Iranian naval assets, while Operation Earnest Will showed that the United States could sustain convoy and escort missions in the Persian Gulf. In a major, sustained operation, the U.S. could probably suppress Iranian conventional threats and reopen a route through the strait 1.

A determined U.S.-led coalition could also likely restore at least a usable shipping channel after an Iranian attempt to close the waterway. Iran’s mines, missiles, small boats and attacks on commercial vessels could make the task dangerous and costly, but they would not necessarily stop a larger U.S. response indefinitely. The evidence suggests the United States can reduce risks to merchant vessels through escorts and sustained military deployment, even if it cannot remove every risk 2.

International law strengthens the case for keeping the strait open. The law of the sea recognizes transit passage through international straits and limits the ability of coastal states to suspend it. Legal analysis raises serious objections to a unilateral Iranian closure, giving an international coalition a strong basis for defending continued navigation — though not for claiming ownership of the waterway 3.

The stakes would also create strong pressure to act. Hormuz is a major global petroleum and commercial chokepoint with few easy alternatives, so even a temporary closure could affect energy prices, shipping and regional economies. That dependence makes restoring passage a central objective, but it does not make the task simple or permanent (see Figure 1).

The case against

Iran would not need to defeat the U.S. Navy to prevent full American control. It could use dispersed forces, fast attack craft, coastal missiles, drones, mines and attacks that exploit the vulnerability of commercial ships. These tools could cause temporary local denial — making the strait too dangerous or uncertain for normal traffic — even while U.S. forces retained conventional military superiority 4.

Mines are an especially serious problem. Defeating Iranian ships or striking coastal sites would not immediately make a narrow, busy waterway safe for commercial vessels. Detecting and clearing mines can be slow, dangerous and highly specialized, particularly in a contested environment. The existence of dedicated U.S. mine-clearance missions underlines that restoring navigation requires much more than simply putting warships in the area 5.

That means a reopened route would not be the same as guaranteed safe passage. Escorts can lower the danger, but they cannot eliminate the risk of missile strikes, drones, mines, accidents or political limits on how far the United States is willing to escalate. The United States cannot promise that every ship will travel safely, at all times, through a conflict zone 6.

There is also a legal limit to the word “control.” International transit rules may support efforts to protect shipping, but they do not grant sovereignty to the country with the strongest military. U.S. patrols, escorts or temporary suppression of threats would be operational influence, not an unrestricted right to govern all traffic in Hormuz 7.

Important uncertainties remain. A future crisis could unfold differently depending on coalition support, force posture, escalation, duration and political tolerance for casualties and economic costs. The available evidence does not provide one shared scenario or a single agreed definition of control.

The bottom line

The claim is substantially correct if “control” means the permanent ability to prevent Iran from disrupting traffic through the Strait of Hormuz. Iran could likely impose dangerous, costly and temporary disruption even without winning a conventional war.

But the claim is too broad if it suggests the United States could not contest Iranian forces or reopen navigation after a crisis. With a major commitment and partners, it would likely be able to force open a channel. The key uncertainty is not American military capability; it is whether that capability could produce safe, sustained commercial shipping at an acceptable military, political and economic cost.