 On October 11, 1932, two Japanese cavalry brigades, one mixed brigade, and seven Manchukuo puppet brigades attacked Tang Juwu's forces in Tonghua and Hengren area.The threat of Japanese aerial bombardment of Tonghua forced Tang to withdraw from it in order to spare the civilian population.After the defection of the Manchukuoan 37th Route commander Wang Yongcheng, Tang Juwu was able to break through the Japanese encirclement to the west and escape.