The U.S.-Iran ceasefire described in the CRS brief is best understood as a fragile pause rather than a settled peace. The report says the two sides agreed to a two-week ceasefire on April 7, 2026, after about 40 days of conflict, but attacks continued on April 8 and Israeli strikes in Lebanon escalated on April 9. That combination of diplomacy, military action, and conflicting public statements means the arrangement is highly vulnerable to collapse.