I imagine if anyone destroyed that many satellites in one orbit, the amount of debris flying around would make replacing them pretty difficult without first dealing with all the debris zooming around.
Yeah (and thanks since I didn't know it had a name). I guess that would be some kind of orbital mutually assured destruction since that kind of situation would hurt all communication satellites in nearby orbits. And there's a good chance there will be retaliations that would make it worse. This must factor into the strategy of military satellites. Maybe a better way would be to disable them without physically destroying them?