https://militarnyi.com/en/news/u-s-unhappy-with-japan-s-role-in-gcap-fighter-development-report/
>Washington is pressuring Tokyo through diplomatic and economic channels — including potential threats to bilateral security cooperation — over Japan’s participation in the program.
>The United States is said to be concerned about the level of autonomy Japan would gain through GCAP.
>Israeli intelligence services have also reportedly sought to influence the program over concerns that Saudi Arabia may eventually join.
Riyadh signed a declaration of intent to participate in March 2023. In November 2024, Italy’s foreign minister acknowledged the possibility of Saudi involvement.