Update (April 18, 2026): Iran re-closed the Strait of Hormuz Saturday after a one-day reopening, in response to Trump's refusal to lift the U.S. blockade of Iranian ports. IRGC gunboats fired on Indian-flagged tankers. The U.S.-Iran ceasefire expires Tuesday April 21. See Geopolitics for latest developments.

April 13, 2026 — Iran Blames U.S. for Failure of 21-Hour Islamabad Negotiations.

Tehran Points to Nuclear Demands as Deal-Breaker

Iran's Parliamentary Speaker Mohammad Bagher Ghalibaf blamed the United States for the collapse of historic peace talks in Islamabad, saying American officials "failed to gain the trust of the Iranian delegation" during 21 hours of negotiations at the Serena Hotel on April 11-12, 2026.

The talks — the highest-level face-to-face engagement between the U.S. and Iran since the 1979 Islamic Revolution — foundered on several core issues. The U.S. demanded an "affirmative commitment" that Iran would never pursue nuclear weapons or acquire the tools for rapid weaponization. Iran insisted that uranium enrichment is a sovereign right and rejected what it called "unreasonable demands."

Competing Narratives

Vice President JD Vance, who led the 300-member U.S. delegation, told reporters before departing that Iran had "chosen not to accept our terms." He framed the nuclear issue as the central obstacle: "No nuclear weapon — that's 99% of it," he said, echoing President Trump's position stated before the talks began.

Iranian Foreign Ministry spokesman Esmaeil Baghaei countered that "the success of this diplomatic process depends on the seriousness and good faith of the opposing side, refraining from excessive demands and unlawful requests, and the acceptance of Iran's legitimate rights and interests." The statement signaled that Tehran viewed the U.S. position as maximalist rather than negotiable.

What Comes Next

Pakistan's Foreign Minister Ishaq Dar stressed that the ceasefire must hold regardless of the negotiation outcome. "We hope that the two sides will continue with the positive spirit to achieve durable peace," Dar said. However, with the two-week truce set to expire on April 22 and no follow-up talks scheduled, the diplomatic window is narrowing rapidly. Markets are pricing in renewed uncertainty, with crude oil expected to surge when trading resumes Monday.

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21-Hour Marathon Talks End Without Deal — Vance Departs Pakistan Blaming Iran →

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