Sherman's march to the sea was "total war". In other words, he killed civilians and burned civilian homes, businesses. Took everything, pillaged and raped the people and Southern Land.
Lee fought a Christian War. Lee had soldiers shot for rape, stealing and doing non-war actions.
Like I say, books that tell and glorify the "Un-Civil War",were mostly written by Northern's.
I read an interview of 100 black,free slaves, taken place in Montgomery,AL., in the year 1900.
2 out of the 100 said they were mistreated. One man had scars on his back. "My master mistreated his slaves, and his Own Family; he was not a Christian."