The Great Battle (Korean: 안시성; Hanja: 安市城; RR: Ansi-seong; lit. Ansi Fortress) is a 2018 South Korean historical epic action film directed by Kim Kwang-sik. It stars Jo In-sung, Nam Joo-hyuk, and Park Sung-woong. The film was released in South Korea on September 19, 2018.