Johnny Cash summed up the futility of war in this 6-minute musical tribute:

https://www.youtube.com/watch?v=GM80_377AF4&feature=related

The beautiful Yankee song Lorena was carried home to the South by returning Rebel soldiers. The song was soon outlawed by both sides because, upon hearing it, soldiers on both sides would lay down their arms and go home. It has long been a personal favorite from the war era. Simply beautiful. Enjoy.

A lot of beautiful music sprang from that war of brother against brother, father against son. We can't imagine the depth of emotions involved. It's impossible.