Seoul: The defense ministry lodged a protest with the defense attaches of China and Russia based in Seoul over the brief entry of their military aircraft into South Korea's air defense identification zone (KADIZ) the previous day. On Tuesday, the incursion involved two Chinese military planes and seven Russian aircraft that briefly entered and left the KADIZ over waters east and south of the country. In response, South Korea's military dispatched Air Force fighter jets to prepare for a possible accidental situation.

According to Yonhap News Agency, Lee Kwang-suk, director general of the ministry's international policy bureau, "sternly" protested the entry of these aircraft into South Korea's air defense zone. The ministry emphasized that the South Korean military would actively respond to aircraft activities from neighboring countries in the KADIZ in compliance with international law.

The aircraft did not violate South Korea's airspace, as reported by the Joint Chiefs of Staff. Russia has not recognized the air defense zone established by South Korea, arguing it lacks grounding in international law. The airspace above Ieodo, a submerged rock south of Jeju Island where Chinese aircraft entered, remains a disputed area between Seoul and Beijing due to their overlapping air defense zones.