18 April 2026

The Fragile U.S.-Iran Ceasefire: Issues to Watch

Daniel Byman

After over a month of fighting, the United States and Iran agreed to a two-week ceasefire. The ceasefire is fragile, and many of the key factors that will determine its durability are unclear. Below are six issues to watch as negotiations play out.
Ceasefire or a Settlement?

For now, the United States, Israel, and Iran have agreed to a ceasefire and only a ceasefire. Numerous contentious issues remain unresolved, ranging from Iran’s nuclear and missile programs to Tehran’s support for proxies and repression of protesters at home. Tehran, for its part, seeks an end to U.S. sanctions, the right to enrich uranium, an end to Israel’s attacks on Lebanon, and other demands, as well as guarantees that attacks on Iran will not resume. The war itself has also generated new demands: Iran seeks compensation for the devastation caused by U.S. and Israeli bombing and is claiming that it will demand payment for tankers seeking to transit the Strait of Hormuz. The two sides are far apart, and both seek to convince audiences at home that they have won—something that will further complicate negotiations.

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