There is a resurgence in interest in South Korea's fighter aircraft requirements, with the east Asian country deciding on a variety of aircraft as part of an ongoing modernisation of its air force's capabilities. The choices represent a mix of imported and indigenous solutions, with the country trying to find a way to match its operational requirements with a desire to promote the local industry, mainly state-owned Korea Aerospace Industries (KAI). South Korea has maintained three levels of fighters - low, medium and high - as part of its operational capability. At the low level are Northrop F-5s, at the...