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U.S.-Iran Ceasefire Fails to Stabilize as Trump Rejects New Nuclear Proposal

President Trump rejects Iranian nuclear counteroffer as Tehran warns of military readiness and oil markets react to heightened Gulf tensions.

May 12, 2026 at 4:30 AM

Tensions between the United States and Iran escalated sharply over the last 24 hours after President Donald Trump formally rejected a counterproposal from Tehran. The Iranian offer reportedly suggested diluting a portion of its highly enriched uranium and transferring the remainder to a third country, a move Trump labeled "totally unacceptable." Speaking from the White House, the President stated that the month-old ceasefire is on "massive life support" with a minimal chance of survival, while reiterating his commitment to a "complete victory." In response, Iranian officials have hardened their rhetoric. Parliamentary Speaker Mohammad Bagher Ghalibaf and other high-ranking representatives warned that Iranian forces are "ready to respond" to any aggression, stating that their period of restraint has ended. This diplomatic impasse has caused immediate volatility in energy markets, with Brent crude prices surging amid fears of a prolonged closure of the Strait of Hormuz. Shipping insurance premiums have jumped 300%, leaving over 1,500 vessels effectively trapped as the U.S. considers reviving naval escort operations. Regional dynamics have also shifted following reports that Pakistan allowed Iranian military reconnaissance aircraft to shelter at Nur Khan Airbase during recent hostilities. This development has cast doubt on Islamabad's neutrality as a mediator. Meanwhile, Israeli Prime Minister Benjamin Netanyahu has signaled that Israel may act independently, insisting that no diplomatic resolution is valid without the total destruction of Iran's nuclear facilities.

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