In which work does Stephen Crane portray the experiences of a soldier during the American Civil War?

Stephen Crane presents the experiences of a soldier during the American Civil War in "The Red Badge of Courage." This novel focuses on the psychological turmoil and growth of its protagonist, Henry Fleming, who grapples with fear, courage, and the reality of battle. Crane's detailed descriptions of the chaos of warfare and Henry’s internal conflicts capture the essence of a soldier's experience, emphasizing themes of bravery, self-doubt, and the nature of heroism.

"The Red Badge of Courage" is renowned for its realistic depiction of the battlefield and the intense emotions faced by soldiers, distinguishing it as a seminal work in American literature concerning the Civil War. The other works listed, while significant, do not explore Civil War themes; "White Fang" is primarily about nature and survival, "The Open Boat" deals with the struggles of survival at sea, and "Maggie: A Girl of the Streets" focuses on urban life and social issues in 19th-century America.