Under which plan were the Southern states divided into military districts governed by Union armies?

The Military Reconstruction Act is the correct response because it specifically aimed to reorganize the South after the Civil War by dividing it into five military districts, each overseen by Union military commanders. This plan was part of the broader Radical Reconstruction efforts, which sought to re-establish and secure civil rights for formerly enslaved individuals and enforce federal authority in the rebellious Southern states. The Act required these states to create new constitutions that guaranteed black male suffrage, paving the way for greater civil rights and federal intervention in state affairs.

The Proclamation of Amnesty was more about offering forgiveness to Southerners who would take an oath of loyalty to the Union rather than enforcing military governance. Johnson's Reconstruction Plan had a more lenient approach towards the South and did not involve military districts but rather focused on quick reintegration of Southern states without strict federal oversight. Lastly, while the Reconstruction Act of 1867 is often cited alongside the Military Reconstruction Act, it does not specifically govern the military district divisions as explicitly as the Military Reconstruction Act.