There’s recently been a significant uptick in Russian incursions into Europe. They started in mid-September with Russian drones violating Polish airspace, resulting in Poland being forced to deploy its air force to protect its sovereignty.
Subsequently, a Russian drone violated Romanian airspace. Perhaps most disconcerting, three Russian MiG-31s deliberately violated Estonian airspace in a clearly provocative act.
But these known Russian incursions are being overtaken by a troubling phenomenon. Airports in Europe, including but not limited to Copenhagen and Munich, have seen their operations disrupted by unknown drones.