This is the third and final volume in the trilogy, "The Army of the Potomac," written by historian Bruce Catton. This is the story of the last campaign of the Army of the Potomac, that Ill-fated army that had so often been humiliated by Robert E. Lee and his Army of Northern Virginia. This campaign was to be different however because there was a new man calling the shots and having a man like U. S. Grant at the helm made all of the difference in the world.