“The Conventional Prompt Strike weapons program, which emerged [in] the era of former President George W. Bush, is designed to arm a ballistic missile with a conventional warhead, bringing the range and speed similar to a nuclear weapon to conventional strike.”
How does a jumpy nuclear armed adversary tell the difference?
That’s the whole point. These weapon systems are announced to make adversaries alter their protocols regarding second strike. To instill uncertainty and doubt are they under attack by WMD or not.
The idiocy of this policy is obvious for everyone who studied the history of WWI.