The US is trying to catch up with Russia in developing hypersonic weapons, Defense Secretary Mark Esper said at the Reagan National Defense Forum. Russia has been leading the race in hypersonic missile technology with Avangard Hypersonic Glide Vehicle emerging as a prominent armament in the Russian armory. Almaz-Antey Group Delivers Second Batch Of S-400 Missiles … Continue reading US Way Behind Russian Hypersonic Missile Technology: Washington