What message is conveyed in the main events of "An Episode of War"?

"An Episode of War" is a beautiful piece written by Stephen Crane. The novel shows the dark side of the war and those soldiers who get hurt during war. Apparently war and war heroes are glorified and tall tales are told but the bitter truth is that war brings nothing but agony, pain, misery and isolation.

In short the "Tragedy of War" is the main message of the novel conveyed through the injured lieutenant!