It was confirmed that regarding 10 North Korean Air Force planes approached the no-fly zone stipulated in the 9/19 military agreement one following another from the West Sea and inland areas on the night of the 13th, and the South Korean Air Force responded.
The Joint Chiefs of Staff said on the 14th, “Our military has identified regarding 10 North Korean military aircraft tracks from regarding 10:30 pm on the 13th to regarding 0:20 on the 14th and took countermeasures.”
The Joint Chiefs of Staff is located in the inland area southwest of the Tactical Measure Line by North Korean military aircraft to 5 km north of the no-fly zone (25 km north of the Military Demarcation Line) established according to the September 19 military agreement, and 7 km north of the no-fly zone (47 km north of the Military Demarcation Line) in the eastern inland area. In the West Sea area, it was explained that it approached 12 km north of the Northern Limit Line (NLL) and then went north.
Accordingly, the Air Force made an emergency sortie of air forces, including F-35A stealth fighters, to perform a response maneuver, and in addition, the Air Force maintained a full response posture through follow-up support forces and air defense artillery forces, the Joint Chiefs of Staff said.
The tactical action line refers to a place where the ROK military has drawn an imaginary line north of the Military Demarcation Line (MDL), and has established that it must respond immediately if the North Korean Air Force is found to have reached this line. This is because fighters are fast, and if you do not take action in advance, you will be late.
Although the North Korean air force is quite backward, it was quite rare to send fighters to the south to demonstrate by force. On October 6th and 8th, a fighter squadron was dispatched to a military demonstration, but even at that time, the line of tactical action was not crossed. In particular, it is rare to come close to the no-fly zone stipulated in the September 19, 2018 military agreement.