Another kid is trying to be military expert, and how do you know they are behind the western military tech currently they lack $$$ but they have the tech/experience to match western military tech, S-400 is one of the best ANTI ABM SAMs system/T-90 one of the best tank/S-300 is on par with US Patriot PAC-3/Su-27 series of jets are comparable to US F-15 series of jets/Mig-29 is comparable to US F-16/F-18/ WORLD HEAVIEST BM (R-36) WHICH CAN CARRY 10-15 MIRV NUCLEAR WARHEAD WITH PENETRATION AIDS AND DEVELOPING ANOTHER SUPER HEAVY WHIC CAN CARRY 15-20 MIRV NUKE WARHEADS NAMED SARMAT
And last US MILITARY ALWAYS SAID THAT WE HAVE NO THREAT FROM ANY COUNTRY OF THE WORLD BUT WE HAVE ALWAYS CONSIDER RUSSIAN ARMED FORCES AS A THREAT TO USA