The United States proposed a twenty-year moratorium on Iranian uranium enrichment during collapsed Islamabad negotiations, with Tehran countering with a shorter “single digit” period, sources confirmed Monday. The nuclear timeline dispute—combined with American demands for complete highly enriched uranium removal—constituted the primary obstacle preventing agreement.
Iranian negotiators offered a “monitored process of down-blending” existing stockpiles rather than export, while Washington insisted on minimum two-decade enrichment cessation with comprehensive restrictions. The gap proved unbridgeable during twenty-one hours of talks, though sources indicated Iranians believed proximity to initial agreement existed Sunday morning before Vice President JD Vance’s abrupt press conference announcing departure.
Pakistani, Egyptian, and Turkish mediators continue attempting to salvage diplomacy before the April 21 ceasefire expiration. President Trump claimed Monday that Iranian “right people” contacted Washington seeking deal revival, even as his administration implements comprehensive port blockade to intensify leverage. Turkish Foreign Minister Haqan Fidan suggested 45-60 day ceasefire extension to enable continued negotiation, warning that making enrichment an “all or nothing” issue risks serious obstacle.
Israeli Prime Minister Benjamin Netanyahu revealed Vance briefed him mid-flight that American priority was preventing any Iranian enrichment “in the coming years, and that could be in decades.” Iranian MP Seyyed Mahmoud Nabavian confirmed dual U.S. nuclear demands prevented agreement.
Fidan characterized initial positions as “somewhat maximalist” with parties seeking common ground through mediation, assessing both sides retain ceasefire sincerity despite public recriminations.
U.S. Demanded 20-Year Uranium Freeze in Iran Talks
U.S. demanded 20-year uranium enrichment moratorium in Islamabad talks while Iran countered with single-digit period. Down-blending versus export dispute and Vance's abrupt departure announcement derailed perceived near-agreement as mediators seek 45-60 day ceasefire extension.Source: axios