The Great Lie of the Civil War If you think the Civil War was fought to end slavery, you’ve been duped. In fact, as distinguished military historian Samuel Mitcham argues in his provocative new book, It Wasn’t About Slavery, no political party advocated freeing the slaves in the presidential election of 1860. The Republican Party platform opposed the expansion of slavery to the western states, but it did not embrace abolition. The real cause of the war was a dispute over money and self-determin...