Initially, the Emancipation Proclamation effectively freed only a small percentage of the slaves, those who were behind Union lines in areas not exempted. Most slaves were still behind Confederate lines or in exempted Union-occupied areas. Secretary of State William H. Seward commented, "We show our sympathy with slavery by emancipating slaves where we cannot reach them and holding them in bondage where we can set them free." Had any slave state ended its secession attempt before January 1, 1863, it could have kept slavery, at least temporarily. The Proclamation only gave the Lincoln Administration the legal basis to free the slaves in the areas of the South that were still in rebellion on January 1, 1863. It effectively destroyed slavery as the Union armies advanced south and conquered the entire Confederacy.