Why were federal troops send into the south during Reconstruction?

Federal troops were sent into the South during Reconstruction to enforce Federal Laws and protect the rights of newly freed African Americans after the Civil War. Their presence aimed to suppress violent resistance from white supremacist groups, such as the Ku Klux Klan, and to ensure that African Americans could exercise their rights, including voting. The troops also supported the implementation of Reconstruction policies and the rebuilding of the Southern economy. Ultimately, their deployment was part of the broader effort to stabilize the region and promote civil rights during this tumultuous period.