There are massive problems with hypersonic missiles, it isn't just a matter of putting a better rocket motor on them and have them fly faster.
It seems most claims are little more than ballistic missiles. The Chinese CLAIM to be able to communicate with hypersonic vehicles but there is a corona effect [I forget the correct word] at those speeds that prevent radio communication.
A hypersonic cruise missile would need a SCRAM jet engine and they are hard to fire up. They need air rammed down the motor before ignition so are launched from high speed aircraft. Do houthis have jet fighters?
