Guide to Declarations of Martial Law in the United States (brennancenter.org)
Martial law has been declared at least 68 times in the United States. This guide explains when, where, and why.- The concept has never been well understood. What should be clear, however, is that the president lacks the authority to declare it.
- “The Luther decision makes clear that martial law exists as an emergency power that can be invoked in the United States, at least by state legislatures”