Reconstruction began during the war (and continued to 1877) in an effort to solve the issues caused by reunion, specifically the legal status of the 11 breakaway states, the Confederate leadership, and the freedmen. Northern leaders during the war agreed that victory would require more than the end of fighting. It had to encompass the two war goals: secession had to be repudiated and all forms of slavery had to be eliminated. Lincoln and the Radical Republicans disagreed sharply on the criteria for these goals. They also disagreed on the degree of federal control that should be imposed on the South, and the process by which Southern states should be reintegrated into the Union. These disputes became central to the political debates after the Confederacy collapsed.