INSURRECTION ACT of 1807…

In the wake of Hurricane Katrina, Congress amended the Insurrection Act of 1807. The Act enables the President to deploy the military “to suppress, in any State, any insurrection, domestic violence, unlawful combination, or conspiracy.” The amended Act expands the language of the original Act to include natural disasters, EPIDEMICS, or other serious public health emergencies, TERRORIST ATTACKS or incidents, or other conditions.

https://www.law.berkeley.edu/library/resources/disasters/Crockett.pdf