Russia has deployed S‑400 air defense missile system in Syria
https://bulgarianmilitary.com/2020/01/21/russia-has-deployed-s-400-air-defense-missile-system-in-syria/
Schlagwort: S-400 missile system
Turkey will use S‑400 missile system, NATO’s batteries withdrew from Turkish border
https://bulgarianmilitary.com/2020/01/02/turkey-will-use-s-400-missile-system-natos-batteries-withdrew-from-turkish-border/