Turkey has promised to keep secret information about the S-400 anti-aircraft missile system, said Ismail Demir, head of the defense industry Secretariat of the Republic.

Earlier, US Senator John Thune called “away” to resolve the contradictions between Washington and Ankara on the Russian air defense system. He introduced an amendment to the US defense budget, in which he proposed to buy these complexes from Turkey.

“Russia has expressed concern about the safety of data on the S-400 system, and Turkey has promised to protect this data,” the Milliyet newspaper quoted Demir as saying.

At the same time, in June, the official representative of the Federal service for military-technical cooperation, Maria Vorobyova, noted that Ankara could not transfer anti-aircraft missile systems to Washington without Moscow’s consent. Also, the spokesman for the Turkish ruling party, Omer Celik, stressed at the same time that there are no legal grounds for reselling the S-400.

Deliveries of Russian SAMS, which caused a crisis in relations between Turkey and the United States, began in mid-July last year. Washington demanded that Ankara abandon the deal and purchase American patriot complexes. At the same time, the Americans threatened to delay or cancel the sale of the latest F-35 fighter jets to Turkey, as well as impose sanctions against it. Ankara refused to make concessions.

Last year, Russia fulfilled the first contract to supply Turkey with four S-400 divisions worth $ 2.5 billion. In June, the parties also reached an agreement in principle on the delivery of the second set of air defense systems.