US-Iran Diplomatic Breakthrough Stalls: Talks End Without Agreement After 21 Hours
US/Iran, April 12, 2026 — High-stakes diplomatic negotiations between the United States and Iran concluded in Islamabad on Sunday without a formal agreement, despite an unprecedented 21-hour marathon of direct talks.
US Vice President JD Vance, addressing a press conference following the Pakistan-mediated sessions, described the discussions as “substantive” but ultimately unsuccessful in bridging the deep-seated “gulf of differences” between the two nations.
This encounter marked the first direct engagement at this level since 1979, signaling a historic, albeit inconclusive, shift in bilateral relations. Vance emphasized that while the length of the talks reflected a serious commitment to diplomacy, the Iranian delegation declined to accept the terms laid out by Washington.
Although he declined to provide specific details to avoid “negotiating in public,” Vance identified the prevention of a nuclear-armed Iran as the cornerstone of the American agenda, stating that the US had clearly defined its “red lines” and areas of accommodation, but the Iranian side chose not to accept those terms.
Contrasting the US narrative, Iranian Ministry of Foreign Affairs spokesperson Esmaeil Baqaei confirmed the stalemate via a statement on X, revealing that the discussions involved complex exchanges regarding the Strait of Hormuz, the lifting of international sanctions, war reparations, and the recognition of Iran’s nuclear rights.
Baqaei noted that the success of the process depends on the US refraining from “excessive demands” and “unlawful requests.”