You must be joking. Have you any idea how many ARMED American citizens would rather die fighting than to be forced to accept an experimental injection of God knows what?

The cops and soldiers dumb enough to try would quickly find out what "fuck around and find out" really means.

There would be no putting the genie back in the bottle after that. The country would turn into a bloodbath overnight.

Perhaps that is what the DS wants, so that they can bring in tons of Chinese and UN troops. But even that won't work. Just like we never won the war in Vietnam. So too would they fail in the US, except Americans are more prepared for this than the Vietnamese were.