"Shoulder Arms" is a silent comedy film directed by and starring Charlie Chaplin. It was released in 1918 during World War I and is notable for being one of Chaplin's earliest feature-length films. The movie follows Chaplin's character, known as "The Doughboy," as he goes through various comedic misadventures during his time serving in the trenches of World War I. Despite its comedic nature, the film also includes moments of poignancy and reflection on the realities of war. "Shoulder Arms" was well-received upon its release and remains a significant work in Chaplin's filmography.