US sanctions NATO ally Turkey over Russian missile defense

WASHINGTON (AP) — The Trump administration on Monday imposed sanctions on its NATO ally Turkey over its purchase of a Russian air defense system, in a striking move against a longtime partner that sets the stage for further confrontation between the two nations as President-elect Joe Biden prepares to take office.

The extraordinary step against a treaty ally comes at a delicate time in relations between Washington and Ankara, which have been at odds for years over Turkey’s acquisition from Russia of the S-400 missile defense system, along with Turkish actions in Syria, the conflict between Armenia and Azerbaijan and in the eastern Mediterranean.

The sanctions, which were required under U.S. law dating to 2017 if the administration deemed there to be violations, add another element of uncertainty to the relationship as Trump winds down his term. The move is the first time that law, known as CAATSA, has been used to penalize a U.S. ally.

Prior to Monday, the U.S. had kicked Turkey out of its F-35 stealth fighter development and training program over the S-400 purchase, but had taken no further steps despite persistent warnings from American officials who have long complained about that the system is incompatible with NATO equipment and a potential threat to allied security.

“The United States made clear to Turkey at the highest levels and on numerous occasions that its purchase of the S-400 system would endanger the security of U.S. military technology and personnel and provide substantial funds to Russia’s defense sector, as well as Russian access to the Turkish armed forces and defense industry,” Secretary of State Mike Pompeo said.

“Turkey nevertheless decided to move ahead with the procurement and testing of the S-400, despite the availability of alternative, NATO-interoperable systems to meet its...