General George B. McClellan, the self-styled American Napoleon, is one of the most controversial figures of the American Civil War. General-in-chief of the entire Union army at one point, he led the Army of the Potomac through the disaster at Antietam Creek, was subsequently dismissed by Lincoln, and then ran against him in the 1864 presidential campaign. This collection of McClellan’s candid letters about himself, his motivations, and his intentions reveals much fresh information on the military operations and political machinations he was involved with, and sheds new light on his complex personality.