Poland has temporarily closed its airspace near the southeastern cities of Lublin and Rzeszow due to “unplanned military activity,” following a renewed wave of Russian strikes on Ukraine. The Polish armed forces scrambled aircraft to secure the airspace and protect citizens, characterizing the actions as preventive measures. Concurrently, Ukraine’s air force issued nationwide air raid alerts as tensions escalated in the region. This incident marks a significant escalation in the ongoing conflict, with Poland and NATO forces previously engaging directly with Russian drones that intruded into Polish airspace earlier this month. The backdrop of these developments includes a NATO announcement to enhance its Baltic Sea mission through increased air defense capabilities in response to perceived threats, including drone incursions affecting Denmark, Norway, and Germany. The situation underscores the growing military and political tensions in Europe, with Russian officials warning that any aggression towards their country will elicit a decisive response. This scenario emphasizes the urgent need for enhanced defensive measures and cooperation among NATO allies to ensure collective security in the face of escalating threats from Russia.