South Korea buys more fighter jets to "quickly counter North Korea's nuclear and missile attack"

South Korea spends huge sums of money to purchase more fighter jets to "quickly counteract North Korea's nuclear and missile attack". A few days ago, South Korea and the United States held F-35A joint air exercises
Yonhap News Agency reported on July 15 that the South Korean government is expected to spend about 3.15 billion US dollars from 2023 to 2028 to purchase 20 additional F-35A "Lightning" II fighter jets.
The South Korean military envisages that the F-35A with stealth capability will be used to carry out a "pre-emptive strike", which is expected to quickly counteract the North Korean military's nuclear missile attack and strengthen the core combat power of the "kill chain". The "kill chain" belongs to One of South Korea's three-stage countermeasure systems is the operational concept of detecting and intercepting North Korean missiles. As its key countermeasure, F-35A fighter jets have increased from the current 40 to about 60 after additional purchases.
According to another report, the South Korean Air Force announced on the 14th that it and the US military stationed in South Korea dispatched their respective F-35As to hold the first joint stealth fighter air military exercise between the two militaries.