Undetected drone detonates in Latvian lake

On the morning of May 23, an unmanned aircraft loaded with explosives crossed into Latvian airspace from Belarus, flew roughly 20 kilometers over NATO territory without triggering a single military sensor, and plunged into Lake Drīdzis in eastern Latvia. It detonated on impact. No one was injured. Latvia's National Armed Forces told the LETA news agency that their sensors had not detected the drone. Local residents reported the explosion by calling the police. No cell-broadcast warning was sent.

A Month of Incursions

Lake Drīdzis caps a month in which armed drones have penetrated Baltic airspace repeatedly. On May 7, a drone struck an oil depot in Rēzekne, Latvia, triggering the defense minister's resignation and ultimately the collapse of the government. Latvia is now run by a caretaker cabinet with no successor coalition in sight. On May 17, a drone entered Lithuanian airspace and was spotted by civilians, not by military radar. Finland briefly closed its southern airspace on May 15 after warnings of an inbound armed drone.

One intercept succeeded. On May 19, Estonian radar tracked a drone approaching from the east. NATO scrambled Romanian F-16s from their base in Lithuania, and a single air-to-air missile brought it down over an Estonian field. Three countries coordinated within seventy minutes. The difference: Estonia's sensors saw the drone. In Latvia and Lithuania, they didn't.

Built for Bombers, Facing Drones

NATO stations fighter jets across the Baltics on rotating deployments under what it calls Air Policing, a peacetime mission designed to identify and shadow aircraft that stray into allied airspace. The system was built for Russian bombers testing Nordic defenses, not for small drones flying at altitudes where conventional radar can't track them.

On May 21, the three Baltic presidents called on NATO to upgrade to an Air Defense Mission with standing authority to shoot down threats without waiting for case-by-case political approval. That shift requires consensus from all 32 NATO allies, and no decision has been taken. Secretary General Rutte has framed the upcoming Ankara Summit in July as a review of drone defense rather than a mandate change.

National governments are moving faster. Poland's Donald Tusk has warned that the threat of provocations on NATO's eastern flank "is becoming a fact", and Warsaw is building its own anti-drone shield along the border. Lithuania has begun deploying Giraffe 1X low-altitude radars from Saab to cover the 30-to-300-meter altitude band where these drones fly, but integration will take months. The collective response lags behind the national ones.

Billions for Missiles, Pennies for Warnings

The gap between military and civilian preparedness runs just as deep on the spending side. Latvia is negotiating a multi-billion-euro EU defense loan for military hardware. On the civilian side, EU telecom law required all member states to build mobile public warning systems by June 2022. As of mid-2025, seven countries still hadn't complied, Latvia and Finland among them. The European Commission has not opened enforcement action against any of them.

Latvia sent its first-ever cell-broadcast test message in July 2025, for a weather warning. The system remains partially deployed. When the drone hit Lake Drīdzis, no automated alert reached residents. They heard the explosion and called the police themselves.

Latvia's government fell over the Rēzekne strike. Three weeks later, the caretaker cabinet that replaced it watched another armed drone fly in undetected.