Final answer:
The Ku Klux Klan (KKK) was a terrorist group formed in the South after the Civil War, with the intent of ensuring white supremacy through acts of intimidation and violence against those who fought for civil rights.
Step-by-step explanation:
The Ku Klux Klan (KKK) was a terrorist group formed in the Southern states after the Civil War. Their primary goal was to ensure white supremacy by terrorizing those who fought for civil rights. The KKK engaged in acts of intimidation, violence, and even murder against African Americans and their white supporters. They used tactics such as intimidation, destruction of property, assault, lynching, and political assassination to suppress civil rights and maintain white dominance in the South.