Turkey's participation in the Nagorno-Karabakh conflict is "problematic" for maintaining unity in the ranks of NATO, US ambassador to NATO Kay Bailey Hutchinson told the National newspaper ahead of the summit of NATO FMs. 

According to her, Turkey's behavior in the Eastern Mediterranean regions disputed with Greece and Cyprus, the country's participation in the recent armed conflict between Azerbaijan and Armenia in Nagorno-Karabakh, as well as the acquisition of the Russian S-400 system are "problematic" for maintaining unity in the ranks NATO.

“Some of the behaviour that has been mentioned is problematic to the unity of the alliance and the alliance is strong because we are unified. We are concerned most especially about the S-400,” she said.

“The idea that you can put a Russian-made missile defence system in the middle of our alliance is out of bounds. We have registered that with Turkey time and again,” Ms Hutchinson noted.