Mr. Erdogan wants the U.S. F-35 stealth fighter, but he purchased Russian S-400 advanced anti-aircraft systems in 2019. There is no reason to believe he wouldn’t test the F-35 against the S-400s ...

Mr. Erdogan has weeded out of the Turkish military all who believe in secularism. He has established an Islamist state, and Turkey’s goals are now entirely inconsistent with those of NATO.