"Starship Troopers" is a science fiction novel written by Robert A. Heinlein, published in 1959. The story follows Juan "Johnny" Rico, a young man who joins the military to fight against an alien species known as the Arachnids. The novel explores themes of citizenship, duty, and the moral implications of war. The narrative is set in a future society where military service is required for full citizenship. Through Rico's experiences, the book examines the nature of authority, the responsibilities of citizens, and the concept of sacrifice for the greater good. It has sparked discussions about militarism and civic duty since its release.