US President Donald Trump announced that a planned naval blockade of Iranian ports will commence on Monday, marking a significant escalation in tensions after ceasefire talks in Islamabad, Pakistan, ended without an agreement. The US military confirmed that the blockade will target all Iranian ports, starting at 10 am EDT, while allowing non-Iranian vessels to pass through the strategic Strait of Hormuz, a vital route for global oil shipments. Following the announcement, oil prices surged, with US crude rising about 8% and Brent crude climbing roughly 7%, reflecting fears of further disruptions to energy supplies. Iranian officials, including Mohsen Rezaee from Iran’s Expediency Council, dismissed the blockade as impractical and warned that Iran's military would resist enforcement. Trump's comments emphasized that Iran's nuclear ambitions contributed to the breakdown of negotiations, with the president maintaining that all options remain available. Analysts expressed concerns that the blockade could exacerbate regional instability and increase pressure on global energy markets.