Decisive Engagement series were produced by August First Film Studio. The series include LiaoShen campaign, HuaiHai campaign and PingJin campaign, 3 films in total. The films demonstrate the most important campaigns of the second civil war.

《大决战》是八一电影制片厂拍摄的关于解放战争时期三大战役的系列电影，分为 《辽沈战役》、《淮海战役》、《平津战役》 三部六集，《辽沈战役》和《淮海战役》分别于1991年上映，《平津战役》于1992年上映。三部电影以宏伟逼真的气势再现了解放战争中三次决定性的伟大战役。