The Battle of Jangsari (Korean: 장사리: 잊혀진 영웅들; RR: Jangsari: Icheojin Yeongungdeul; lit. Jangsari: Forgotten Heroes) is a 2019 South Korean action-war film co-directed by Kwak Kyung-taek and Kim Tae-hoon, starring Kim Myung-min, Megan Fox, and Choi Min-ho in the lead roles.

The second installment in a trilogy following Operation Chromite, the film depicts the September 14–15, 1950 Battle of Jangsari and tells the true story of the 'Independent 1st Guerrilla Battalion' (estimated strength: 718-772) of student volunteer soldiers led by ROK Army officers, including Captain Lee Myung-heum), who staged a small diversionary operation at Jangsari beach in Yeongdeok.

The main mission was to block the supply route and therefore to achieve disruption of the North Korean Army around the Pusan Perimeter by hit-and-run tactics and the secondary mission was a diversion to draw the North Korean Army's attention, to facilitate the success of the Incheon landing.

Megan Fox plays the role of Maggie, an American reporter and war correspondent for the New York Herald Tribune, who covered the Korean War and called on the international community for assistance. Kim Myung-min plays a guerrilla task force commander while Choi Min-ho plays a low-ranking soldier. George Eads plays the leader of the landing operation.

The film was released theatrically in South Korea on 25 September 2019 and in the U.S. on 4 October 2019.