Group 1 - The UK has conducted its first NATO air defense mission over Poland in response to Russian drone incursions [1][4] - Two Royal Air Force Typhoon jets took off from a military base in eastern England on the night of September 19 and returned safely on the morning of September 20 [4] - The UK Defense Minister emphasized that this action sends a clear message that NATO airspace will be protected [4] Group 2 - The Polish military had previously engaged in defensive actions against multiple drones entering its airspace on the night of September 9, utilizing both national and NATO defense systems [4] - Poland reported that some of the drones were shot down and that several airports were closed as a precaution [4] - Russia has stated it cannot confirm the drones' origin but is open to discussions with Poland [4]