WASHINGTON — The United States has announced a sweeping naval blockade targeting Iran’s ports after high-stakes negotiations between the two countries failed to produce a deal, marking a sharp escalation in the ongoing conflict.
The decision follows talks held in Islamabad aimed at ending weeks of fighting, but the discussions broke down over major disagreements, including Iran’s nuclear programme, its regional influence and control over maritime access.
Under the new plan, the U.S. military will block all maritime traffic entering or leaving Iranian ports, effectively cutting off a major portion of Iran’s oil exports and trade. However, ships not linked to Iran will still be allowed to pass through the strategically vital Strait of Hormuz.
President Donald Trump said the move is intended to pressure Tehran economically and ensure free navigation in global shipping lanes. He also warned that vessels engaging with Iran, such as those paying transit tolls, could face interception, signaling a broader enforcement strategy.
Iran responded with strong warnings, with its Revolutionary Guards saying any foreign military presence near the strait could be treated as a violation of the fragile ceasefire. This raises fears of direct confrontation in one of the world’s most sensitive energy corridors.
The blockade is expected to have major global economic consequences. Analysts estimate it could remove around 2 million barrels of Iranian oil per day from global markets, tightening supply and pushing prices higher. Oil has already surged above $100 per barrel amid the uncertainty.
Financial markets have reacted nervously, with global stocks falling and investors moving toward safer assets as concerns grow over prolonged instability and rising inflation driven by energy costs.
Despite the escalation, Trump indicated that further negotiations with Iran remain possible, though both sides continue to blame each other for the collapse of the talks.
The move marks a critical turning point in the conflict, shifting from diplomacy to economic and military pressure, with the potential to reshape global energy flows and intensify geopolitical tensions in the Middle East.