The ceremonial signing of the US-Iran memorandum is scheduled for today, Friday 19 June, in Switzerland, with Pakistan and Qatar as mediators and the Swiss facilitating. That is the formal close of a process that firmed up over the past week, after President Trump declared on 14 June that the deal was "now complete" and authorised the toll-free opening of the Strait of Hormuz and the removal of the US naval blockade.
The signature matters. But for anyone planning movement, the gap between the announcement and the operating picture is the story.
- **The water is moving slowly.** In the first window after the announcement only seven ships transited the strait, with more than 550 still stranded on either side. Traffic is rising but remains well below pre-war levels. - **The ceasefire is interim.** The framework runs as a 60-day cessation of hostilities on all fronts, including Lebanon, while the parties negotiate a final settlement. It is a clock, not a peace. - **The airspace has not followed the headline.** EASA's conflict-zone bulletin for the Middle East and Gulf (2026-03-R12, revised 10 June, valid to 24 June) still directs operators not to fly Iran, Iraq and Lebanon at any level, and to exercise caution across the Gulf states. The US keeps Iran at Level 4, Do Not Travel.
**Operator implication.** A signature changes the diplomatic status, not the threat picture, on day one. Re-plan off the bulletins and the maritime advisories, not the press conference. Build the 60-day expiry into any standing plan now, while it is quiet, so a lapse does not catch a team mid-task. Watch the EASA bulletin's 24 June review and Tehran's own public posture as the real indicators of whether this holds.
