U.S. and Iran negotiators have zeroed in on four nuclear constraints as cease‑fire cracks threaten progress. Talks, held under President Trump’s team, aim to halt enrichment for a period that could stretch to 15 years, down‑blend Tehran’s 11 tons of enriched uranium, dismantle key sites and permit unannounced inspections. Regional powers watch the brink.

Washington insists any deal must cover the full $25 billion of frozen assets and reopen the Strait of Hormuz, which Iran has largely blocked for over three months. Iran counters with a ten‑year enrichment pause, while U.S. officials push for a 20‑year ban, though Trump signaled willingness to accept a genuine two‑decade limit. The dispute also threatens oil markets. The gap fuels diplomatic friction.

The four‑point outline hinges on Tehran’s willingness to let International Atomic Energy Agency teams verify sites like Natanz, Fordow and Isfahan, all damaged in the prior “Midnight Hammer” strikes. Without Iranian compliance, the United Nations inspection regime cannot function, leaving the United States with limited leverage. As of now, the framework remains fragile and unenforced.