SHTF/Survival&Disaster Preparedness
10 USC 253: Interference with State and Federal law
https://uscode.house.gov/view.xhtml?req=granuleid:USC-prelim-title10-section253&num=0&edition=prelim
The President, by using the militia or the armed forces, or both, or by any other means, shall take such measures as he considers necessary to...