https://nationalinterest.org/blog/buzz/us-military-going-all-hypersonic-
weapons-28767
In this particular case, both Russia and China have pushed the boundaries of
technology when it comes to hypersonic weapons. Russia has fielded the Kh-
47M2 Kinzhal aeroballistic missile and is developing the Avangard hypersonic
boost-glide vehicle and the Tsircon hypersonic anti-ship cruise missile.
China has also been working on hypersonic boost-glide vehicles and other
hypersonic weapons technologies. The United States is essentially playing
catch up at this point.
