The Ku Klux Klan was an organization that attacked these two groups among others?

The Ku Klux Klan primarily targeted African Americans and Jewish communities, among others. Founded in the aftermath of the Civil War, the Klan sought to maintain white supremacy through intimidation, violence, and terror. Their actions included lynchings, cross burnings, and other forms of racial and religious persecution. Over time, the Klan also directed its hostility toward immigrants and other marginalized groups.