北欧两大机场因不明无人机停摆，丹麦首相：不排除俄罗斯的参与

Core Viewpoint - The recent drone incidents over Copenhagen Airport and other locations have raised serious concerns about potential Russian involvement, with Danish officials labeling it as one of the most severe attacks on critical infrastructure to date [2][4]. Group 1: Incident Overview - Multiple large drones, likely operated by a "professionally capable entity," were spotted flying over Copenhagen Airport, which is the busiest aviation hub in Northern Europe [3]. - The drone activity led to the closure of Copenhagen Airport for several hours, disrupting operations significantly [2]. Group 2: Government Responses - Danish Prime Minister Mette Frederiksen stated that she cannot rule out the possibility of Russian involvement in the drone incidents, describing them as part of a troubling trend of attacks on critical infrastructure [2]. - Norwegian Prime Minister Jonas Gahr Støre reported that Russian aircraft have violated Norwegian airspace multiple times this year, raising concerns about the nature of these incursions [4]. Group 3: NATO and EU Reactions - NATO condemned the recent incursions by Russian aircraft as part of a series of irresponsible actions, emphasizing the need for Russia to be held accountable for these behaviors [5]. - European Commission President Ursula von der Leyen highlighted the need for a "drone defense wall" in the EU's eastern flank to protect against potential Russian threats [6].