In a dramatic escalation, President Trump posted a map labeling the Strait of Hormuz as 'NEW U.S. Territory,' claiming it's open and mines cleared. Iran counters that the strait stays closed until U.S. meets conditions, while shipping traffic plummets and oil prices rise above $91.

Trump Redoubles Provocation Over Hormuz

U.S. President Donald Trump reignited tensions in the Middle East on Tuesday, August 18, 2026, by posting a map on his Truth Social platform showing the Strait of Hormuz with the caption 'NEW U.S. TERRITORY', adorned with a blue, red, and white star‑studded stripe. In the post, Trump insisted that the waterway is 'open and operational' and that 'all aquatic mines have been removed or detonated.'

This isn't the first time the president has floated such an idea. Just days earlier, on August 14, at a rally in Long Island, New York, he said he would consider incorporating the strait as U.S. territory after 'defeating Iran.' He declared, 'Very soon I will declare the Strait of Hormuz as U.S. territory, in essence. We have a blockade. No ship passes unless we want it to pass.' He also threatened Oman, a U.S. ally, saying, 'If Oman stands in the way, we will bomb them and destroy them.'

Trump's statements come amid a fragile geopolitical landscape, with the strait being a chokepoint for about one‑fifth of global oil and liquefied natural gas shipments.

Iran's Stance: No Opening Without Conditions

Tehran responded swiftly. Mohamad Baqer Qalibaf, Iran's chief negotiator, told Parliament that the strait will remain closed until the United States fulfills the conditions of the provisional agreement signed in June. These include lifting the naval blockade on Iranian ports, removing oil sanctions, unfreezing Tehran's assets, and ending all military threats and operations across all fronts.

The memorandum of understanding, reached on June 17, 2026 in Versailles, quickly unraveled over control of the waterway. Trump declared the agreement 'terminated' on July 7, and a week later Iran called it 'suspended.' According to Reuters, a senior Iranian official said on Monday that Tehran would adopt a 'fully offensive' posture due to the diplomatic deadlock.

Traffic Collapses in Hormuz

Data from the analytics firm Kpler shows the conflict's impact: ship transits through the strait plunged 17% in a single day, with only 10 confirmed transits on Tuesday. Of those, six vessels departed the Persian Gulf and four entered. Just five used the Iranian Unilateral Scheme, while none were confirmed via the Traffic Separation Scheme (TSS)—the international route used before the war.

Kpler also confirmed a new attack on August 17, 2026 against the bulk carrier Minoan Dignity, which killed one sailor.

Oil Prices on the Rise

The combination of falling traffic, ship attacks, and an unresolved diplomatic dispute is pressuring crude prices. Brent is trading around USD 91.31 per barrel, and WTI is near USD 84.38, both trending upward. Analysts attribute the increase to fading hopes of an imminent deal—a pattern seen at every stage of the conflict.

IndicatorValue
Brent CrudeUSD 91.31 (+0.32%)
WTI CrudeUSD 84.38
Confirmed Hormuz Transits10 (recent historic low)
Daily Transit Drop17%

Oman in the Storm's Eye

Iran and Oman have been negotiating navigation through the strait for months. Washington fears these talks could lead to tolls on merchant ships. Trump directly threatened Oman in an interview with Fox News' Trey Yingst.

Iran confirmed that talks with Oman 'continue in a serious manner' and that geographic coordinates for the shipping route have already been agreed. Meanwhile, Qatar has offered to mediate. Its foreign ministry spokesman, Majed Al Ansari, said an agreement on Hormuz would 'allow a return to the framework of negotiations' between Washington and Tehran.

Background: The war began on February 28, 2026, when the U.S. and Israel launched a military campaign against Iran. The naval blockade remains in full effect, and the 60‑day deadline of the memorandum expired without an agreement.

For international readers, the Strait of Hormuz is a narrow waterway between the Persian Gulf and the Gulf of Oman. It is crucial for global energy supplies, as roughly 20% of the world's oil and LNG passes through it daily. Its closure could disrupt markets worldwide.