Overview

• Denmark reported new unidentified drones near key sites, briefly closing Aalborg Airport overnight on Sept. 26 after earlier shutdowns at Aalborg and Billund and sightings near Skrydstrup airbase and other facilities.
• Copenhagen told NATO allies the sorties resemble state activity, yet Danish intelligence says the perpetrator remains unclear, and Russia has publicly denied involvement.
• EU defense ministers convened to coordinate a cross‑border counter‑UAV "drone wall" combining shared sensors, jammers, and rapid‑response rules to protect airports and bases.
• European envoys privately warned Moscow that further airspace violations could see intruders shot down, while the Kremlin called such threats reckless and warned of dangerous consequences.
• This month’s incidents include NATO jets downing drones that entered Polish airspace and an alleged MiG‑31 incursion over Estonia that triggered Article 4 consultations, with Romania updating rules for engaging hostile aircraft.