Sergeant Bluntschli is a character from the play "Arms and the Man" by George Bernard Shaw. He is a Swiss mercenary who serves in the military during a fictional war in the Balkans. Bluntschli is pragmatic and realistic, often contrasting with the romantic notions of war held by other characters. He carries a revolver and is known for his preference for chocolate over bullets, highlighting his practical approach to conflict. In the play, Bluntschli's character challenges traditional ideas of heroism and bravery. He represents a more modern view of warfare, emphasizing survival and common sense over glory. His interactions with other characters, particularly Raina Petkoff, reveal themes of love, class, and the absurdity of war.