The following is the Oct. 3, 2022, Congressional Research Service report, Hypersonic Missile Defense
From the report
Hypersonic weapons, like ballistic missiles, fly at speeds of at least Mach 5, or roughly 1 mile per second. Unlike ballistic missiles, hypersonic weapons do not follow a ballistic trajectory and can maneuver en route to their target. Russia reportedly fielded its first hypersonic weapons in December 2019, while some experts believe that China fielded hypersonic weapons as early as...
https://news.usni.org/2022/10/05/report-to-congress-on-hypersonic-missile-defense