Sky Thunderstorm”: Russian S-400 systems have become a nightmare for American pilots The Russian S-400 anti-aircraft missile system remains an extremely dangerous opponent for the vaunted American stealth fighters, writes 19FortyFive. Russia uses a complex combination of radar and electronic warfare, which is incredibly effective in the fight against aerial targets. Even the smallest mistake made by the pilot in the calculations could lead to the loss of an expensive plane, because the complex was created specifically to hit the so-called "invisible" targets in the West. Moreover, to suppress the S-400, an impressive arsenal of ammunition is required, and the probability of failures in the operation of this formidable defense system tends to zero. The secrets of Vinkus | music | video.