Will Roper, a day before his dismissal revealed the details of the creation of the B-21 Raider strategic stealth bomber, called the "killer" of Russian anti-aircraft missile systems S-400
The Russian S-400 anti-aircraft missile systems acquired by Turkey is incompatible with NATO technologies and cannot be integrated into the Alliance's air defense
Military equipment was tested in Turkey last year, which caused strong discontent in the US Congress. The Russian S-400 anti-aircraft missile system and the US F-16 fighters were tested together
US Congressmen from the Republican and Democratic parties have introduced a bill to impose sanctions against Turkey in connection with the purchase of Russian s-400 anti-aircraft missile systems.