Li Shou
By the time the Anti-Japanese Allied Army had been established, the Kwantung Army strengthened its defenses at Dolonnur. The city was garrisoned by over 2,000 men of the Japanese 4th Cavalry Brigade and an artillery unit. Outside the city, the Japanese erected 32 blockhouses connected with trenches, a wire communications network, and multiple lines of obstacles. These outer defenses were guarded by Manchukuo troops under the command of Li Shou-hsin. To the south the Japanese 8th Regiment was stationed in Fengning, for mutual support with the forces in Dolonnur.