The US and Iran announced a preliminary agreement on Sunday to cease hostilities
and reopen the Strait of Hormuz, creating a 60-day negotiation window to address
Iran’s nuclear program. The memorandum has not been released and is scheduled
for formal signing on June 19; text details remain unsettled and the signing
process could be blocked. Major disputes persist — including the scale of
economic assistance to Iran, how to handle its nuclear program, and responses to
its ballistic missile program — and ongoing Israel‑Lebanon fighting could derail
talks. Michael O’Hanlon, director of foreign policy at the Brookings
Institution, said a temporary deal to reopen the Strait is possible but a
comprehensive agreement is unlikely at present.