• Trump demands Iran either sign a deal or face annihilation, rejecting Tehran's ceasefire proposal.
  • Iran seeks sanctions relief and naval blockade lifting in exchange for phased Hormuz reopening; talks remain indirect.
  • IEA warns of largest oil supply disruption in history as crude tops $100 and global growth risks mount.

A Stark Choice

President Trump issued a stark ultimatum to Iran on Wednesday, declaring that he must soon decide between a negotiated settlement and further military action, warning that without a deal, Iran "won't exist any longer." The comments, made during a wide-ranging press interaction, underscore an acute escalation in the U.S.–Iran conflict that has already roiled global energy markets and upended decades of nuclear diplomacy.

"I have to make a decision," Trump said, framing the choice as whether to "blow them up or make a deal." He added that the conflict would end "very soon, one way or the other."

Tehran says it has received a formal U.S. response to its latest proposal and remains willing to discuss its nuclear program, but insists it will not negotiate under coercion. The Iranian package, according to people familiar with the matter, included a seven-day ceasefire, a phased reopening of the Strait of Hormuz, and eventual nuclear talks. In return, Iran sought relief from the U.S. naval blockade of its ports, oil-sanctions waivers, the release of about $12 billion in frozen assets, and broader regional de-escalation.

Washington publicly rejected the proposal as inadequate, though both sides remain in indirect contact through mediators. Qatar is pursuing shuttle diplomacy, but no agreement has yet reopened the waterway or created a durable off-ramp from the war.

Energy Markets Under Siege

The economic stakes center on the Strait of Hormuz, the world's most critical energy chokepoint. Before the crisis, roughly 20 million barrels per day moved through the strait. In August, flows averaged just 7.6 million barrels per day—13.1 million below pre-war levels, according to the International Energy Agency. The IEA now calls the conflict the largest supply disruption in oil-market history.

Crude prices have surged above $100 per barrel, with refined-product markets under particular strain. Diesel, jet fuel, and LPG supplies have tightened significantly, feeding through to freight, aviation, chemicals, and food supply chains. The IMF estimates oil prices were about 30% above pre-war levels as of mid-June and has warned that extended disruption risks weaker global growth.

Asia is especially exposed. The U.S. Energy Information Administration estimates that 89% of crude and condensate transiting Hormuz in the first half of 2025 went to Asian markets. The IEA has already cut its 2026 global-oil-demand outlook by 2.5 million barrels per day amid the prolonged impasse.

Global inventories and strategic reserves initially cushioned the shock, but the IMF notes those buffers are finite. The market's central question is no longer simply whether oil will rise further, but whether a deal can restore secure shipping before stockpiles are drawn down more aggressively.

Nuclear Diplomacy in Tatters

The conflict has its roots in decades of U.S.–Iran hostility and disputes over Tehran's nuclear program, but the immediate diplomatic landscape is far more precarious than during previous standoffs. The 2015 Joint Comprehensive Plan of Action, endorsed through UN Security Council Resolution 2231, traded sanctions relief for restrictions and international monitoring of Iran's nuclear activities. It included a "snapback" mechanism to restore UN sanctions in the event of Iranian noncompliance.

That framework has effectively collapsed. Following U.S. and Israeli attacks on Iranian facilities on February 28, the IAEA stopped verification work in Iran. A credible final settlement would therefore need a mechanism to restore inspectors' access and account for nuclear materials—a task made more difficult by the war's destruction.

UN politics are fragmented. Previously terminated sanctions were reimposed in September 2025 under the snapback procedure, though China, Russia, and Iran dispute the legal basis. In September, Russia and China vetoed a U.S.-backed effort to renew the UN expert panel monitoring Iran sanctions implementation. The sanctions remain, but international oversight has weakened.

Washington's War Powers Fight

Trump's approach has triggered a major congressional war-powers dispute. The House approved a measure urging him to halt the war or obtain explicit authorization; the Senate later rejected a related measure by a 50–49 vote. The result leaves the administration with substantial practical freedom to continue operations, but also signals bipartisan unease about an open-ended conflict, its objectives, costs, and constitutional basis.

Trump has said more intensive bombing after the November midterms is "possible," while Iranian officials continue to insist that the United States must cease hostilities and leave the region.

What to Watch

Three scenarios matter most in the near term. A negotiated de-escalation could lower the geopolitical risk premium in oil, but any agreement would need credible sequencing—what Iran does first, what sanctions relief follows, and how IAEA inspection access resumes. A continued stalemate would prolong constrained energy flows, high insurance and transport costs, and pressure on global inventories. The IEA has already deferred its expectation of a full Middle Eastern supply recovery until 2027. Military escalation would make a diplomatic settlement more remote, deepen shipping interruptions, and increase the danger of spillover into the Red Sea, Lebanon, Yemen, Israel, and Gulf states.

Even a deal would not instantly restore normality. Reopening Hormuz requires security assurances for crews and vessels, repair or protection of damaged infrastructure, restoration of commercial confidence, and workable monitoring of Iran's nuclear program. The IEA's analysis is clear that renewed, reliable transit through Hormuz is the single most important step toward normalizing oil and gas markets.

The broader diplomatic challenge is that Washington appears to be moving beyond a narrow maritime deal toward broader nuclear concessions, while Tehran seeks sanctions relief and security guarantees before making irreversible moves. Analysts describe the core obstacle as disagreement over sequencing and over who must make the first meaningful concession.

A spokesperson for the National Security Council did not immediately respond to a request for comment. The Iranian mission to the United Nations also did not respond to an inquiry.

Correction: An earlier version of this article misstated the date of the U.S. and Israeli attacks on Iranian facilities. They occurred on February 28, not February 18.