You have to do what you got to do.
Sherman's march was not too rough. He didn't know that they were going to win the war so he did what he thought would let the Union win. I believe that he thought that this was going to cause the Confederacy to surrender because he took over Savannah and Atlanta Georgia. I believe that this action is a comparison to WWII. We (The Americans) destroyed everything in our path to stop the Nazi's from winning the war. Which it worked.