In short
- What most people mean by hypersonic missiles is one that can fly at hypersonic speeds from launch to impact and maneuver midflight making their flight path impossible to predict
- Ballastic missiles have been hypersonic since the first V2 rocket developed by the Germans, but don't have hypersonic speeds the entire flight, can't maneuver midflight, and follow a predictable flight path which means it can be shot down
- The kinzhal missile, Russia's self-proclaimed hypersonic weapon, is actually just a repurposed Ballastic missle that can be launched from an airplane instead of a launch pad but doesn't maneuver midflight or maintain hypersonic speeds the entire flight. It also has a predictable flight path.
- Due to the above, Ukrainians using the PATRIOT system from the US, a system built in the 80s, have shot down their unstoppable missile multiple times.
- Now even Chinese media is calling it all cap