Third-round indirect talks between the United States and Iran opened in Geneva on 26 February, with Iran’s chief negotiator Araghchi leading the Tehran delegation and U.S. representatives including special envoy Witkoff and Jared Kushner present for Washington. Officials on both sides have kept substantive public detail sparse, but a single disclosure on the eve of talks has already reshaped expectations.
U.S. negotiators have insisted that any future nuclear agreement contain no sunset clauses — in other words, that limits on Iran’s nuclear programme be binding indefinitely rather than expiring after a set number of years. This demand, presented as a precondition by the U.S. team, marks a stark departure from the architecture of the 2015 Joint Comprehensive Plan of Action, which included time-limited restrictions that Washington’s president previously criticised before withdrawing from the deal.
The diplomatic push is unfolding alongside intensified military signalling across the Middle East. Since the second round of talks on 17 February, the U.S. has surged assets to the region — including scores of aircraft and carrier deployments — while Iran has staged naval exercises off its southern coast displaying anti-ship ballistic missiles, fast-boat formations and drone swarms. Tehran’s manoeuvres are both a response to U.S. force posture and a demonstration of bargaining chips it can present at the negotiating table.
Pressure is not solely kinetic. Washington has layered sanctions, public messaging and clandestine outreach into its campaign. In recent days the U.S. updated OFAC listings to designate multiple individuals, entities and oil tankers, the CIA published a Farsi-language recruitment post online, and senior U.S. officials reiterated threats of force while publicly professing a preference for diplomacy.
The credibility of America’s hard power signal, however, has been dented by the operational problems of a key asset. The USS Gerald R. Ford, deployed near the region, has suffered chronic failures in its vacuum waste system, producing frequent outages, long lines and dozens of maintenance incidents. Extended deployments and maintenance woes have strained crew morale, underlining logistical limits to sustained forward pressure.
Taken together, these strands — a U.S. insistence on indefinite nuclear limits, parallel talks on missiles and proxies, stepped-up sanctions, covert messaging and visible military posturing — make an already complicated negotiation more brittle. Iran is being asked to accept restraints with no sunset while Washington signals that it will press for follow-up talks on missiles and regional behaviour, a sequencing Tehran is unlikely to accept without significant sanctions relief and security guarantees.
For the international community the stakes are clear: a deal that removes sunset clauses would alter the balance of non‑proliferation commitments and could set a precedent for perpetual inspection and limits; failure at the table risks further escalation at sea and in the Gulf and continued volatility in energy markets. The coming days will test whether diplomacy can survive simultaneous coercion on multiple fronts, or whether pressure tactics will harden positions and provoke a renewed cycle of confrontation.