The Republic of Korea Air Force with 500 combat machines, many support aircraft, training aviation and crucial air defence is among the strongest in the planet at least in terms of numbers. The challenge will be the number of obsolete aircraft that will request to be replaced, but it seems that the answer is the KF-21 Boramae fighter program and F-35 purchases. Their purchases will make South Korea the holder of any of the strongest aviation troops in the world.