Seoul Responds to Intrusions by Chinese and Russian Aircraft in Air Defense Zone

South Korea’s Air Force scrambled fighter jets after nine Chinese and Russian military aircraft entered its air defense identification zone (ADIZ) on December 9, 2025. According to Seoul’s Joint Chiefs of Staff (JCS), the planes were detected and identified before entering the ADIZ and withdrew without incident. This incident is part of a recurring pattern of joint flights by China and Russia in the region, which has raised concerns about aerial threats. Breaking Defense reports that South Korea’s military emphasized that no violation of sovereign airspace occurred.