an Entity references as follows:
The Battle of Qingshanli was fought over six days in October 1920 between the Imperial Japanese Army and Korean armed groups in a densely wooded region of eastern Manchuria called Qīngshānlǐ (Japanese: 青山里, Seizanri; Korean: 청산리, Cheongsanri). It occurred during the campaign of the Japanese army in Jiandao, during the Japanese rule of Korea (1910–1945).