It is reported by TASS.

“Over the past years, NATO has invested more than $ 5 billion in Turkey’s military infrastructure, including various military facilities, naval bases and radars,” Stoltenberg said, noting Turkey’s alliance support for “an enhanced air and peaceful presence.”

Earlier, US senators Chris Van Hollen and Lindsey Graham officially called Turkey’s purchase of Russian S-400 anti-aircraft missile systems (SAM) a violation of the US law on countering opponents through sanctions.

In September, the US Department of State announced the development of all options for sanctions against Turkey for the purchase of S-400.

Turkish President Recep Tayyip Erdogan, in turn, explained the choice of the S-400 as purely commercial interests.