乌苏里江
On December 24, 1932, the Japanese 10th Division attacked guerrilla forces to the north of Mudanjiang River. January 5, 1933, General Kuan Chang-ching was forced to surrender his Volunteers at Suifehno on the Soviet frontier. On January 7, 1933, Japanese took over Mishan. On January 9, 1933, Li Du's guerrilla forces crossed Ussuri River into the USSR.