There's a downside to hypersonic - they are NOT agile especially in terminal guidance so they are primarily/only good for stationary targets. Going so fast ca

There's a downside to hypersonic - they are NOT agile especially in terminal guidance so they are primarily/only good for stationary targets. Going so fast carries this cost. The hypersonic weapon win is when you need a short OODA loop in an engagement - perfect for that and we've see that happen already in Ukraine with them: the attack on Yavoriv - it was over and targets dead before ATC/Air Defense even realized there were incoming. That's a short OODA loop. https://en.wikipedia.org/wiki/OODA_loop https://en.wikipedia.org/wiki/OODA_loop https://www.npr.org/2022/03/13/1086327654/russian-forces-escalate-attack-in-western-ukraine-target-military-base https://www.npr.org/2022/03/13/1086327654/russian-forces-esc... A similar effect would occur with HGVs launched from SLBMs off the US coast - it's be over before anyone even raises the first alarm of incoming.