The Insurrection Act is a federal law in the United States that allows the President to deploy military forces to suppress civil disorder, insurrection, or rebellion. It was first enacted in 1807 and provides the legal framework for the federal government to intervene in situations where state authorities are unable to maintain order. Under the Insurrection Act, the President can send troops to restore peace and protect constitutional rights. This law has been invoked in various historical contexts, including during the Civil Rights Movement and the Los Angeles Riots in 1992, highlighting its significance in addressing domestic unrest.