The fact is the U.S. Government made a policy of war on civilians and the C.S.A. had the opposite approach whether it was the Pennsylvannia Campaign or fighting in the border states. There were violations, such as Chambersburg, but the strategy for the Confederates was to win the hearts and minds of the population while the Lincoln Regime sought to break them. General Lee could have sacked Gettysburg and perhaps he should have done it. Has been discussed at lenght on this message board. Burning and pillaging was Union policy and that was not just Sherman and Sheridan's war tactics.