Why did the reconstruction years brings about unprecedented level of political terror and violence?

The Reconstruction years in the United States were marked by unprecedented political terror and violence primarily due to the backlash against the changes brought about by the Civil War and the emancipation of enslaved people. White supremacist groups, such as the Ku Klux Klan, emerged to resist the integration of African Americans into society and the political landscape, using intimidation, violence, and murder to suppress Black political power and maintain white supremacy. Additionally, the federal government's efforts to enforce civil rights and protect newly freed individuals were often met with fierce opposition from Southern whites, leading to widespread chaos and instability in the region. This violent resistance underscored the deep-seated racial tensions and the struggle over the direction of American society during this transformative period.