Notes: This was one of Japan’s first post-war fighter designs, being first produced in 1967. It is a combat version of the T-2 trainer, with the rear seat replaced by additional fuel, a gun and hardpoints added, and the nose filled with radar and avionics. It bears a marked resemblance to the Jaguar, and it is often mistaken for the Jaguar at air shows. By the time of the war, it was a dated design, but still saw a lot of use. The two wingtip hardpoints may only carry heat-seeking air-to-air missiles or the Sidearm antiradar missile.

Twilight 2000 Notes: The main limitations on the use of the F-1 during the Twilight War were its short range and the inability to refuel from US or South Korean tanker aircraft.

Notes: In the late 1980s, Japan was looking for an aircraft to replace its aging and outmoded F-1 strike fighters. To this end, they designed the FS-X, based on an enlarged and modernized F-16A airframe; after more modernization and development, this became the F-2. Compared to the F-16A, the F-2 is a much more capable aircraft, with air-to-air capability nearly on par with the F-15 and an air-to-ground capability similar to the F/A-18. Chaff was developed similar to that used in the Eurofighter; this chaff is one level better in fighting lock-on and guidance attempts.

Twilight 2000 Notes: These aircraft were standouts in the Twilight War, both over Korea and in defense of Japan.