sentences:  By September 1938, the Japanese estimated that the Anti-Japanese Army was reduced to 10,000 men.By 1940, the war was stalemated although Japan held most of the Manchurian coastal areas and the open country along the railroads, small forces of Chinese guerrillas fought doggedly on from the mountains and woodlands.The Kwantung Army then brought reinforcements into the Northeast with a plan for "maintaining order and mopping up anti-Japanese elements."