[oldleft]

I agree with you.

But the task of getting 10 nuclear tipped satellites into a 500 mile orbit would not go unnoticed.

[GOP_1900AD]

I doubt they would use satellites. It would be quicker and dirtier to use plain old ICBMs and SLIRBMs (e.g. launched from locations at the appropriate distance from CONUS). The warheads would be detonated using GPS coordinates (of note, GPS actually works in three dimensions, something easy for forget when we use it for land, sea and lower atmosphere navigation).