Mike Kehoe's order triggers a state of emergency due to civil unrest, even as no evidence existed of riots or other widespread violence in Missouri.

Missouri Governor Mike Kehoe on Thursday declared a State of Emergency and activated the Missouri National Guard in anticipation of protests across the state.

Trump sent National Guard troops to California amid days of protesting federal immigration raids. Here's what's usual, and unusual, about the order.

Gov. Mike Kehoe declared a State of Emergency on Thursday and activated the Missouri National Guard to respond to potential civil unrest.

The National Guard was also called during the 1992 L.A. riots and the unrest that followed Martin Luther King Jr.’s assassination in 1968. Trump’s order was unlike any other.

Before Saturday, the last time a president sent Guard troops in to deal with civil unrest without cooperation from the state’s governor was 1965.

In 1992, President George H.W. Bush mobilized the National Guard to Los Angeles due to riots that broke out following the acquittal of white police officers who were charged with assaulting Rodney King, an unarmed Black man.

The civil unrest that has consumed Los Angeles in recent days, sparked by Immigration and Customs Enforcement (ICE) arrests, appears to be spreading rapidly across the United States, with major cities reporting widespread protests,

The troops that President Trump deployed to Los Angeles are members of a state-based militia that exists in every state and can be called in during natural disasters or civil unrest.