Illustrates the horrors of the Civil War. The stories are short and the endings surprise the reader. He can be verbose without necessarily being eloquent. Some have a hint of the supernatural, others realistic.
The best:
Chickamauga - Begins with a child playing war. He falls asleep and finds himself in the midst of a real battle with wounded men dragging themselves to the river to drink. At the end he finds his home destroyed and his mother's mangled body. Then it is revealed that he is deaf and mute. Thus, he slept through the transformation from play to reality.
The Mocking Bird - Can't say if the incredible coincidence of the man shooting his own twin brother happened in his dream or was a reality. In either case, it is a symbolic story of the tragedy of a war which pit countryman against countryman. There are two other stories in the collection in which people are forced to kill relatives.
Coup de Grace - Exceptional. A man finds himself killing his best friend to spare him the agony and possibly being eaten by wild boards, only to find that a team of stretcher bearers and a hated rival officer have arrived just in time to witness the scene.
Occurrence at Owl Creek - The classic.