Donald Trump claims Strait of Hormuz as new U.S. territory amid rising tensions with Iran

On August 18, 2026, U.S. President Donald Trump escalated tensions with Iran by posting a map on Truth Social labeling the Strait of Hormuz as "New U.S. Territory." Trump asserted that no ships would pass through the vital oil transit route without American permission, declaring that the U.S. is in complete control. He further stated that no negotiations are planned with Tehran and that the naval blockade on Iranian ports remains in full force, claiming that all naval mines have been neutralized.

Tehran responded with severe warnings and strong rhetoric. Iranian officials, including Deputy Foreign Minister Kazem Gharibabadi, labeled Trump’s claim as delusional and vowed to address it. Earlier, lead negotiator Mohammad Bagher Ghalibaf stated that the strait would remain closed until the U.S. fulfills commitments from a June agreement, including lifting oil sanctions and unfreezing assets. Foreign Minister Abbas Araghchi emphasized that Iran refuses to surrender to U.S. pressure, alleging that the U.S. is now seeking negotiations under Iranian terms.

While Trump maintains the strait is open and functional, the situation remains a major flashpoint. Military threats continue, with Iranian commanders warning they would retaliate physically if the U.S. persists in its attempts to annex the maritime corridor. The international community continues to monitor for further reactions or policy clarifications from the White House.