There’s evidence at hand that we’re witnessing a slow roll-out of the NG.
https://www.bizjournals.com/baltimore/news/2020/03/20/national-guard-arrives-in-baltimore-to-support.html
https://www.foxnews.com/politics/national-guard-to-deploy-1000-troops-in-six-states-in-response-to-coronavirus
https://www.timesunion.com/news/article/Arizona-governor-calls-up-National-Guard-halts-15145362.php
If the numbers that came out of China are worth anything, we could have between 40k and 60k infected in the US by April 1. Would those kind of numbers warrant martial law?