^^^ There were some 'red cell' type exercises run that said NYC could pretty much be shut down, isolated, cut-off from power, water, phones, transport, food, fuel.... everything... for an extended period... by a dozen A-teams.
That's 144 guys for those who don't habla.
That's the same number, roughly, it took to over-run the graveyard of empires. Before the neo-cons came along and fu%$#d it all up.
Cheers,
Sirhr
The only problem is getting all those dudes to show in that part of the country at once. Also, we would need some type of decent comms with crypto. That and air support are the hard parts.