Trump Declares Strait of Hormuz 'Sovereign US Territory' Amid Ongoing Blockade

In a Tuesday morning post on his Truth Social platform, US President Donald Trump shared a blue-highlighted map of the Strait of Hormuz, unilaterally declaring the critical Middle Eastern waterway a "NEW U.S. Territory." The social media declaration escalates the ongoing six-month war with Iran by laying claim to one of the world's most vital maritime chokepoints.[1][4][5]

The declaration follows the expiration of a 60-day negotiating window between Washington and Tehran, which ended without a diplomatic breakthrough. In subsequent statements, Trump confirmed that there are "no talks or conversations going on, or scheduled" with the Iranian government, signaling a hardening of the US posture in the region.[1][3][4]

The territorial claim is anchored by a persistent US naval blockade that has restricted access to Iranian ports since the conflict erupted in late February 2026. Trump asserted that the blockade "remains in full force and effect," while simultaneously claiming that the strait itself is "open and operating" under American control.[2][3][4]

According to the US administration, American forces have successfully cleared the waterway of hazards. Trump stated that all water mines placed in the strait have been "removed or detonated," framing the territorial annexation as a necessary step to secure global shipping lanes from Iranian interference.[1][3][4]

The formal social media declaration was preceded by days of public signaling. During a speech to police officers in New York on Friday, Trump first floated the idea, stating that once the US finished "defeating Iran," he would designate the strait as American territory. He reiterated the sentiment to reporters in the Oval Office on Monday, calling it an "excellent idea" and emphasizing that the US has "total control" over the passage.[1][2][5]

Iranian officials immediately rejected the annexation. Parliament Speaker Mohammad Bagher Ghalibaf stated that the waterway "will remain Iranian" and emphasized that Tehran considers the strait closed to international transit.[4][5]

Ghalibaf outlined Iran's conditions for reopening the route, demanding that the US lift its naval blockade, release frozen Iranian assets, remove oil sanctions, and cease all military operations. Until those concessions are met, Tehran maintains that the chokepoint will remain impassable.[1][4]

The geopolitical shockwave instantly registered in global energy markets. Brent crude oil futures surged past $91 per barrel by Tuesday morning, reaching their highest price point since July. The strait typically accommodates roughly 20 percent of the world's seaborne oil and gas, making any shift in its control a matter of profound global economic consequence.[1][2][5]

International legal experts note that unilaterally annexing an international waterway is virtually unprecedented in modern maritime law. While Trump has previously threatened to annex foreign territories—including Greenland and parts of Canada—the physical presence of the US Navy enforcing a blockade in the Strait of Hormuz lends immediate operational weight to this latest declaration.[4]