The US-Iran memorandum announced on 14 June points to easing conditions across the Gulf and eastern Mediterranean: a Hormuz reopening, the naval blockade lifted, and a declared ceasefire on the Lebanon front. On paper, that lowers the odds of the airspace closures and short-notice movement restrictions that have shaped regional planning since late February.
What hasn't changed: GNSS interference. Open-source reporting through the conflict has put jamming and spoofing across a wide arc from the eastern Mediterranean and Black Sea to Iraq, Iran and the Gulf. An EASA-IATA monitoring programme logged more than 580,000 instances of GPS signal loss across roughly 18.4 million flights between August 2021 and June 2024, and a ceasefire does not switch that off — degraded navigation persists well after shooting stops, and a fragile truce gives little incentive to stand down electronic warfare assets.
Operator implication: for movement through the region this week, run two assumptions in parallel. First, that the ground and air picture may genuinely loosen as the Hormuz reopening takes effect — useful for principals who had movement deferred. Second, that the Lebanon track can reverse inside a day if a strike lands, so secondary routes and shelter protocols stay live, not archived. For air movement specifically, brief crews to expect GNSS degradation regardless of the ceasefire and confirm the aircraft's interference procedures before departure.
