It will take atleast alot of time for indigenous engine but for the next 10-12 years from prototyping to maybe initial squadrons US engine would be used, alot is still going to come from F-35 program.
Do not bring China into the thread, open a separate thread.
Japan has older F-15 and F-4s to replace many new F-15s and F-35 are for that and as additional to their next generation requirement they are developing ATD-X3...it is their REQUIRNMENT you dumb.
atatwolf and vietnamese member reported, stay on topic, do not bring in China or any other topic except for discussing ATD-X3 if another post comes to the scene other than this topic Moderators are told to ban the member and or restrict the member with warning.
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Aeronaut i again request to remove several posts in this thread and kindly restrict some members on this thread.