The Insurrection Act was last used by President George H.W. Bush in 1992, when the acquittal of the LAPD officers who beat Rodney King sparked the Los Angeles riots. The National Guard has marched against US citizens a total of 12 times. (Eight) of them were in response to segregation protests, 2 were riots over police violence, and 1 to stop riots in the aftermath of MLK's assassination. They're almost exclusively called against Black citizens,"