Battle of Xiangjiang River

Battle of Xiangjiang River is a 2017 Chinese war film directed by Chen Li, written by Liu Jianwei, Bai Tiejun and Xiang Xiaomi, and starring Wang Ying, Xu Jian, Dong Yong, Bao Jianfeng, Sun Weimin and Zhang Yishan. The film picks up the story of the 34th division of the Red Army officers and soldiers paid great sacrifice to cover the Central Committee of the Chinese Communist Party through Xiangjiang River, and successfully broke through the blockade of the Kuomintang, during the early months of the Long March.

Synopsis from Wikipedia, CC BY-SA 4.0. Everything below written here.