The United States has announced the start of a naval blockade targeting Iranian maritime activity, marking a significant escalation in tensions in the Middle East. Speaking to reporters outside the Oval Office on Monday, April 13, 2026, President Donald Trump said the blockade of the Strait of Hormuz had begun, adding that other countries would assist in the operation, though he did not identify them.
The Strait of Hormuz, one of the world’s most critical oil transit routes, has become the focal point of rising geopolitical friction. The president reiterated that the United States would not allow Iran to develop nuclear weapons, stating that “Iran will never have a nuclear weapon” and accusing Tehran of attempting to “blackmail the world.” He also confirmed that recent diplomatic efforts had failed, noting that talks held in Islamabad collapsed after Iran refused to commit to abandoning its nuclear ambitions.
Earlier on Monday, April 13, 2026, Trump announced via Truth Social that the United States would block ships entering or exiting Iranian ports beginning at 10:00 AM ET. The declaration followed a prior announcement of a broader naval blockade in the region, underscoring a rapid shift toward a more aggressive US foreign policy stance amid a seven-week-long conflict involving Iran.
Despite the escalation, US military officials indicated that vessels traveling to and from non-Iranian ports through the Strait of Hormuz would not be obstructed. Authorities emphasized that humanitarian shipments, including food and medical supplies, would be permitted after inspection. However, neutral vessels may still face search procedures to ensure they are not carrying prohibited cargo.
The military warned that any unauthorized vessel attempting to enter or leave the designated blockaded zone could be intercepted, diverted, or seized. Officials also clarified that the blockade applies universally to all vessels regardless of nationality, raising concerns about potential disruptions to global shipping and energy markets.
