Well my contrarian but seemingly sit rep challenged friend there are now over 30,000 troops in DC and they aren’t leaving. Why are they just sticking around in a ghost town?
Well that’s easy enough to find on a search:
https://www.kabc.com/news/25k-national-guard-troops-remain-in-dc/
These are also state NG troops sent by their governors. A military operation on the scale you are coming up with in your imagination would not be done by NG troops.