The United States has begun enforcing a naval blockade on Iranian ports, effective from 14:00 GMT, following unsuccessful negotiations in Islamabad. This blockade aims to pressure Iran economically and politically, with the US military stating that vessels without authorization risk interception. The Strait of Hormuz, a vital waterway for global oil transport, sees approximately 20% of the world's oil flow through it daily, making any disruption significant. Iran has condemned the blockade, labeling it as maritime piracy and warning that it could lead to severe economic repercussions, including rising oil prices. The blockade has already contributed to increased fossil fuel import costs in Europe and heightened shipping risks. Israel has expressed support for the US decision, emphasizing the need for coordinated efforts to address Iran's nuclear ambitions. Analysts suggest that while the blockade might strengthen US leverage in negotiations, it also heightens the risk of military escalation and could destabilize the already fragile ceasefire.