Trump Reaffirms Iran Nuclear Red Line as 60-Day Pact Expires

Trump reiterated Aug. 17 that Iran must never possess nuclear weapons, hours after the 60-day US-Iran pact expired with no extension and Hormuz shipping collapsed to near zero.

"We did not have a ceasefire in the first place that we would now want to extend. We had 'the end of the war,' and now there is a new situation," Iranian Foreign Minister Abbas Araghchi said over the weekend, dismissing the notion of reviving the June framework.

Only five commodity vessels crossed the Strait of Hormuz on Saturday and none on Sunday, compared with 31 the previous weekend, according to ship-tracking data from Kpler. The memorandum, signed June 17 by Trump and Iranian President Masoud Pezeshkian, had called for the "immediate and permanent termination of military operations" and a final agreement within 60 days, with Washington committing to a $300 billion reconstruction package for Iran and sanctions relief in exchange for Tehran clearing mines from the waterway.

The breakdown leaves the world's most critical oil chokepoint — which carries roughly 21 percent of global seaborne crude — under competing claims of control. Trump has threatened to declare the strait a "territory of the United States," while Iranian Deputy Foreign Minister Kazem Gharibabadi said it "will be opened and closed only under Iran's command." With Treasury Secretary Scott Bessent warning of additional economic measures, the next phase could combine intensified sanctions with continued naval standoffs, keeping crude prices elevated and safe-haven demand firm.

The June framework unravelled within weeks. By July 7, Trump declared the agreement "over," while Tehran accused Washington of failing to lift sanctions, release frozen Iranian assets and end its naval blockade. Iran's leadership has since hardened its posture: Supreme Leader Mojtaba Khamenei warned that Tehran would reject additional US demands, and the appointment of former IRGC chief Mohsen Rezaei to head the Supreme National Security Council points to a tougher security stance.

The current standoff follows the June 2025 US strikes on Iranian nuclear facilities, which marked the first direct US military action against Iran's nuclear programme and set the stage for the June memorandum. The collapse of that framework now leaves markets without a diplomatic anchor, and the near-total shutdown of Hormuz has already removed a substantial share of daily seaborne oil transit from the market calculus.

Iran is exploring alternatives. Tehran is working with Oman on possible shipping routes, though Araghchi stressed that any reopening of the waterway would depend on a broader political understanding with Washington. Qatar and Pakistan continue to relay messages between the two sides, raising the possibility of a new arrangement outside the original framework.

Sanctions Escalation Looms

Treasury Secretary Scott Bessent has warned of additional economic measures against Tehran, potentially targeting oil exports, financial networks and entities accused of helping Iran evade existing restrictions. Iranian Vice President Mohammad Reza Aref acknowledged the pressure, saying the country would overcome what he described as "economic warfare" and calling for national unity and tighter market regulation. Trump has also said Americans may pay "a tiny little bit more for their gasoline" as the campaign continues.

The nuclear question remains the core unresolved issue. The June framework pushed uranium enrichment into negotiations for a final agreement, with Tehran reaffirming it would not pursue nuclear weapons. The collapse of that framework leaves those questions open alongside disputes over sanctions, oil exports, frozen assets and the US military presence in the region.

For markets, the immediate test is Hormuz. Any agreement that restores safe commercial shipping could create space for wider negotiations and ease crude price pressure. Continued attacks, interceptions or competing blockades, however, could further escalate tensions. The key question is whether both sides can establish a new negotiating framework before the breakdown of the June agreement triggers another round of direct confrontation.

This article is for informational purposes only and does not constitute investment advice.