The protagonist, or main character of "An Episode of War" is the lieutenant.
An Episode of War is an story written by Stephen Crane which deals with the lieutenant who is hit by a bullet in the war.
The theme of "An Episode of War" is war itself, and how war doesn't discern between soldiers and innocent people.
Stephen Crane was an American poet, novelist, and short story writer well known as one of the most innovative writers of his generation.