A Short History of Reconstruction [Updated Edition]

by Eric Foner

Lincoln fully appreciated, as he would observe in his second inaugural address, that slavery was “somehow” the cause of the war. But he also understood the vital importance of keeping the border slave states in the Union, generating support among the broadest constituency in the North, and weakening the Confederacy by holding out to irresolute Southerners the possibility that they could return to the Union with their property, including slaves, intact.