American forces sank six small Iranian boats in the Strait of Hormuz on Monday after the vessels moved to harass commercial shipping trapped in the waterway, a sharp escalation that came just hours before President Trump warned Tehran it could be "blown off the face of the Earth" if it interferes with US efforts to reopen the strait.
The confrontation marked the first direct kinetic exchange under "Project Freedom," the initiative Trump announced Sunday evening to break a maritime logjam that has stranded hundreds of ships from roughly 87 countries in the Persian Gulf. The bottleneck stretches back to the start of Operation Epic Fury on Feb. 28, and Iran has insisted that any vessel attempting to transit the strait must coordinate with Tehran first.
Iran got a different answer on Monday. Adm. Brad Cooper, the head of US Central Command, told reporters in a press call that the Iranian boats were dealt with swiftly.
"Today, we saw just six and eliminated them quickly."
Cooper noted that Iran historically has deployed "between 20 and 40 small boats" to threaten commercial shipping in the strait. Monday's contingent was smaller, and shorter-lived.
Cooper described the US presence as defensive, not provocative. He said CENTCOM had concentrated "an enormous amount of capability and firepower" in and around the strait, including AH-64 Apache and MH-60 Seahawk helicopters.
"I think the key thing for us is we're merely there as a defensive force and to give a very thick layer of defense to commercial shipping to allow them to proceed out of the [Persian Gulf]."
At least two American merchant ships crossed the Strait of Hormuz on Monday, CENTCOM reported. The command said it is also reaching out to neutral vessels to offer them safe passage, a sign that Washington intends to keep the corridor open by force if necessary.
Trump, speaking to Fox News chief foreign correspondent Trey Yingst, left no ambiguity about the stakes. He said the US has "more weapons and ammunition at a much higher grade than we had before" and warned Iran directly.
"We have the best equipment. We have stuff all over the world. We have these bases all over the world. They're all stocked up with equipment. We can use all of that stuff, and we will, if we need it."
The president also said Iran has become "much more malleable" regarding peace talks, though those talks have stagnated since mid-April, and a fragile cease-fire secured last month appears to be fraying.
Monday's hostilities were not limited to the small-boat engagement. South Korea's foreign ministry reported that the HMM Namu, a Panama-flagged cargo ship, suffered a blast early Monday. Fire broke out in the vessel's engine room. The cause of the blast remains unclear.
Separately, Abu Dhabi officials said a United Arab Emirates oil tanker was targeted by an Iranian drone and caught fire. Together, the incidents paint a picture of an Iranian regime willing to lash out across multiple fronts even as American firepower tightens around the strait.
Iran dismissed CENTCOM's account of two US ships crossing the waterway as "baseless" and claimed it had fired at US warships. Tehran also warned it would resist any effort to force the strait open. Cooper, for his part, did not say whether the cease-fire had collapsed.
Trump seized on the attack against the South Korean vessel to press Seoul for support. South Korea has 26 ships trapped in the Gulf, and the president posted on Truth Social:
"Perhaps it's time for South Korea to come and join the mission!"
He added that "other than the South Korean Ship, there has been, at this moment, no damage going through the Strait." Military commanders were expected to brief reporters Tuesday on the operations.
Monday's engagement fits a broader pattern. Iran and its proxies have repeatedly used small boats and drones to menace commercial shipping in critical waterways. In the Red Sea, Houthi militants, backed by Tehran, launched a similar campaign against international trade routes. In one incident, four small Houthi boats attacked the merchant vessel Maersk Hangzhou after it issued a distress call. US Navy helicopters from the USS Eisenhower responded, and CENTCOM said the helicopters sank three of the four boats after being fired upon, with no US personnel or equipment damaged.
That Red Sea clash underscored the same dynamic now playing out in the Strait of Hormuz: Iranian-linked forces probing with cheap, expendable boats, and American forces responding with overwhelming firepower. The Maersk ship had also been targeted by Houthi missiles the day before and was reportedly seaworthy with no injuries, but the disruption to global shipping was real and lasting.
The Houthi campaign forced a multinational naval security effort and rerouted billions of dollars in trade. The Strait of Hormuz carries even higher stakes, roughly a fifth of the world's oil passes through it daily, and the months-long backup has already imposed enormous costs on global commerce.
The administration's willingness to sink Iranian boats raises familiar questions about executive war powers. The White House previously declared hostilities with Iran "terminated" on the day Congress's war-powers deadline expired, a move that drew skepticism even then. Monday's events make that declaration look premature at best.
On Capitol Hill, the House already defeated a Democratic attempt to restrict Trump's military authority regarding Iran. That vote preserved the president's flexibility to act, and the sinking of six boats on Monday suggests the administration intends to use it.
The broader geopolitical picture adds pressure. Trump has warned China against arming Iran and said President Xi pledged in writing to stop weapons transfers, a commitment whose durability remains untested. If Tehran continues to escalate, the question of who is supplying its drones and munitions will grow harder to ignore.
For now, the math in the Strait of Hormuz is straightforward. Hundreds of ships sit idle. Iran insists on controlling the waterway. The United States says those ships will move. On Monday, six Iranian boats tested that promise and ended up on the bottom.
Several questions hang over the confrontation. What caused the blast aboard the HMM Namu? Has the cease-fire formally collapsed, or is this something both sides will treat as an isolated flare-up? And will other nations, South Korea, the UAE, European maritime powers, step up with ships and resources, or leave the US to police the strait alone?
Cooper's description of the US posture as "defensive" is accurate in the narrow military sense. American forces did not seek out the Iranian boats; the boats came to them. But Project Freedom itself is an assertion of will, a decision to move ships through a contested waterway against the explicit objections of a hostile regime. That is not aggression. It is the enforcement of international maritime law, backed by Apache helicopters and the political resolve to use them.
The congressional debate over presidential authority will continue. So will Iran's provocations. But Monday established a fact on the water: the United States will keep the strait open, and the cost of testing that commitment will be borne by the boats that try.
When a regime that threatens global commerce with speedboats meets a navy that answers with Apaches, the outcome is not a mystery. The only question is whether Tehran learns the lesson, or needs another one.
