2019 Chinese film directed by Chen Kaige et al

In 1953, the Korean War is entering the final stage. The People's Volunteer Army of China has launched the last major battle in Kumsong. In order to arrive at the battleground on time and deliver enough force to the Kumsong front line, the soldiers have to defend themselves against the never ending bombing of enemy bombers and race with time to repair bridges, all under the circumstance of supply shortages and inferior equipment. The rarely told history slowly unfolds.