What Iran and the US stand to gain from the deal, and why both may fight to preserve the deal.

The document, signed separately by US President Donald Trump and Iranian President Masoud Pezeshkian, sets a 60-day framework on Iran’s nuclear program, but also guarantees an immediate halt to military operations on all fronts, including Lebanon, respect for collective sovereignty, the reopening of the Strait of Hormuz and the closure of the US Navy.