US President Donald Trump has threatened to declare the Strait of Hormuz “a territory of the United States”, escalating an already dangerous confrontation with Iran over control of one of the world’s most important energy shipping routes. The remarks come as tanker traffic through the strait has fallen sharply, peace efforts remain stalled and higher oil prices are increasing economic pressure well beyond the Middle East.
Trump claims effective US control
Speaking in New York on Friday, Trump said that after the United States had finished “defeating Iran”, he would “pretty soon” declare the Strait of Hormuz US territory. He went on to suggest that Washington already exercises effective control because of the American naval presence and blockade.
US media subsequently reported that the White House characterised the territorial remark as a joke. However, the statement comes amid a very real military confrontation over freedom of navigation and control of shipping through the strategically vital passage.
Iran rejects the threat
Tehran responded forcefully. Iranian Deputy Foreign Minister Kazem Gharibabadi said the Strait of Hormuz “has been Iranian, is Iranian, and will remain Iranian”, rejecting the idea that Washington could claim the waterway through military power or a presidential declaration.
The geography also makes any straightforward US territorial claim problematic. The narrow strait lies between Iran and Oman, with shipping lanes passing through waters governed by established international maritime arrangements.
The dispute is therefore less about a plausible transfer of sovereignty than about who can exercise practical control over commercial shipping during the continuing conflict.
Shipping through Hormuz slows sharply
The economic consequences are becoming increasingly significant. Tanker and commercial vessel traffic through Hormuz has declined substantially as the confrontation intensifies.
Only five vessels passed through the strait on Saturday and none on Sunday, compared with 31 during the previous weekend, according to shipping data cited by Reuters.
The Strait of Hormuz is one of the most strategically important maritime chokepoints in the global economy. A significant proportion of internationally traded oil and liquefied natural gas normally passes through the narrow waterway, connecting Gulf producers with customers in Asia, Europe and elsewhere.
Any sustained interruption therefore has implications far beyond Iran and the United States.
Oil prices move higher
Energy markets are already responding. Brent crude climbed as much as 1% on Monday to around $89.40 a barrel, while US West Texas Intermediate rose to approximately $82.83. Both benchmarks had gained more than 5% during the previous week.
Higher oil prices present a renewed inflation risk for importing economies, particularly across Asia and emerging markets where energy costs can have a substantial impact on transport, manufacturing and consumer prices.
Prolonged disruption could also increase shipping and insurance costs as companies reassess the risks of operating in the Gulf.
Diplomacy remains stalled
The latest confrontation comes as attempts to establish a more durable settlement between Washington and Tehran remain unsuccessful. Iranian Foreign Minister Abbas Araqchi has said that no decision has been made on returning to negotiations, while both governments continue to accuse the other of preventing progress.
The immediate question for financial markets is therefore not whether the United States could formally transform the Strait of Hormuz into American territory, but whether the escalating rhetoric will be accompanied by further military action.
With shipping already severely disrupted and oil prices rising, the economic consequences of the confrontation are increasingly global.
Newshub Editorial in North America – 17 August 2026
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