In early October 2025, unidentified drones were detected flying over multiple European countries, including Germany, Denmark, Belgium, Poland, Estonia, and Romania, all NATO members. The drone incursions led to the temporary closure of Munich Airport on October 3, affecting at least 17 flights and thousands of passengers, as well as closures at Danish airports. Drones were spotted near sensitive military sites such as Denmark's air force base (hosting F-16 and F-35 fighters) and Belgium's Elsenborn military base near NATO and EU headquarters. German police were unable to intercept the drones or identify pilots, raising concerns about hybrid warfare tactics. The incidents appear to cluster around the Russian exclave of Kaliningrad in the Baltic Sea, seen as a strategic launching point for drone flights into nearby NATO airspace. Some analysts speculate these are Russian operations designed to test NATO's collective defense responses (Article 5), while others consider them false flag operations by European intelligence or Ukraine to justify imposing special military controls over the Baltic Sea and disrupt Russia's 'shadow fleet' oil and gas transports evading sanctions. Russia denies involvement and President Putin dismissed accusations, while a Russian academic alleged the drone hysteria is a pretext created by Europe and Ukraine. NATO experts and analysts reject the false flag claims, citing overlapping hybrid tactics such as airspace violations and electronic jamming supporting likely Russian responsibility. French navy intercepted a suspected shadow fleet tanker accused of launching drones near Copenhagen. The incidents reflect calibrated, low-cost, deniable hybrid aggression aiming to unsettle NATO without triggering full military response.

In early October 2025, unidentified drones were detected flying over multiple European countries, including Germany, Denmark, Belgium, Poland, Estonia, and Romania, all NATO members. The drone incursions led to the temporary closure of Munich Airport on October 3, affecting at least 17 flights and thousands of passengers, as well as closures at Danish airports. Drones were spotted near sensitive military sites such as Denmark's air force base (hosting F-16 and F-35 fighters) and Belgium's Elsenborn military base near NATO and EU headquarters. German police were unable to intercept the drones or identify pilots, raising concerns about hybrid warfare tactics. The incidents appear to cluster around the Russian exclave of Kaliningrad in the Baltic Sea, seen as a strategic launching point for drone flights into nearby NATO airspace. Some analysts speculate these are Russian operations designed to test NATO's collective defense responses (Article 5), while others consider them false flag operations by European intelligence or Ukraine to justify imposing special military controls over the Baltic Sea and disrupt Russia's 'shadow fleet' oil and gas transports evading sanctions. Russia denies involvement and President Putin dismissed accusations, while a Russian academic alleged the drone hysteria is a pretext created by Europe and Ukraine. NATO experts and analysts reject the false flag claims, citing overlapping hybrid tactics such as airspace violations and electronic jamming supporting likely Russian responsibility. French navy intercepted a suspected shadow fleet tanker accused of launching drones near Copenhagen. The incidents reflect calibrated, low-cost, deniable hybrid aggression aiming to unsettle NATO without triggering full military response.