Though the movie accurately depicts the strongpoints of the Dien Bien Phu fortifications as being named after females, most of the names are changed. In the real battle, the strongpoints were Anne-Marie, Beatrice, Claudine, Dominique, Eliane, Gabrielle, Huguette, and Isabelle. Later after the fall of Beatrice and Gabrielle, additional strongpoints of Sparrowhawk and Juno were erected.