
As part of measures to keep up with China’s rising air power, Japan is considering the purchase of 20 more Lockheed Martin F-35As for the Japan Air Self-Defense Force (JASDF), following on from earlier government discussions. According to a report by local newspaper Yomiuri Shimbun procurement will begin as early as 2020 and will be part of the next Medium Term Defense Program for Fiscal Years 2019-23. The new batch of 20 F-35As is to replace around half of the 200 license-built F-15J Eagles, some of which are facing obsolescence.
Currently, Japan has committed to 42 conventional takeoff F-35As to replace three squadrons of F-4/RF-4 Phantoms based at Hyakuri air base. The first F-35A assembled in the United States has already been delivered to Misawa air base, temporarily assigned to the Rinji F-35A Hiko-tai (squadron). It will later be officially assigned to 302 Hiko-tai (currently an F-4EJ Kai unit) by March 2019, following the delivery of more aircraft.