South Korea's United Staff Headquarters (joint ginseng) said that the four Chinese military aircraft and four Russian military aircraft were once entered the air defense identification zone in southern South Korea and the eastern waters (defense zone, KADIZ).South Korea lead.

Comprehensive Yonhap News Agency and Reuters reported that China and Russia were above the Japan Sea and the East China Sea on Tuesday to conduct the sixth joint air patrol since 2019.The Chinese Ministry of National Defense said that the patrol was part of the annual cooperation plan of the two countries.

The air defense identification zone does not equal airspace. It is a airspace defined by a country based on air defense needs. It aims to provide conditions for early discovery, identification and implementation of the air force interception operations of the military.According to international practice, military planes should submit the flight plan in advance before entering the other national defense zone and announce the flying position.

May and November last year, China -Russia military aircraft entered the South Korean air defense identification zone twice.In January this year, two Chinese military aircraft flew into the South Korean defense zone from the southwest of the island and evacuated.