There is a weird hole where nation-states would love something with the rapid, global deployment capabilities of a nuclear tipped ICBM, but without the nuclear

There is a weird hole where nation-states would love something with the rapid, global deployment capabilities of a nuclear tipped ICBM, but without the nuclear payload for fear of a MAD type retaliation. "Prompt strike" I think is the term. The trouble is, you'd want to be able to deploy such a weapon, but also be very, very clear it's not a nuke, just like a single building sized bomb or something. Perhaps that's a use case for some type of space based directed energy weapon if you could somehow minimize the atmospheric losses to maintain effectiveness.