No international arbitration possible for F-35 program disputes, retired Turkish ambassador says
“We should keep this in mind just in case”
Turkey considers Russian Su-57, Chinese J-31 jets to replace F-35s
Ankara prioritizes S-400s over F-35 fighter jets as the missile systems are seen as an urgent need due to regional tensions
Turkish suppliers to be eliminated from F-35 program in 2020
"Turkey still has the option to change course. If Turkey does not accept delivery of the S-400, we will enable Turkey to return to normal F-35 program activities"