I've never understood why Sherman is rated highly, or anyone would use him as the poster boy for Union sentiment. He was Grant's confidante and supporter, but after capturing Atlanta - practicing total war on a (by now) practically defenseless state doesn't make him a great general in my opinion. That was his modus operandi in the Indian Wars over the next 15 years. Sherman wrote Grant that "we must act with vindictive earnestness against the Sioux, even to their extermination, men, women and children." Kind of makes his middle name a touch of irony.