The Shanxi battlefield was not held exclusively by the Communist forces. From the middle of Sino-Japanese War, the Nationalist army also fought to seize grains in their war efforts. After the Battle of Jinnan in 1941, the Nationalist army at the south section of the Datong-Puzhou Railway was divided into several small and unreachable guerilla bases. While the Japanese army could not completely eliminate them, the Nationalist forces were also too weak to threaten the Japanese. In addition to suppressing Communist forces, the Japanese attempted to obtain more grain. Especially during the harvest season, the Japanese army consistently took grain from large farmlands which were occupied by all forces. The Japanese set tanks and soldiers to plunder food resources from the Nationalist troops on mountain bases. A counter-fight by the Nationalists was inevitable. The battles for grain were frequent but small-scale and had no effect on the balance of power. For the Nationalist, the battle for grain was merely for survival, not to cause significant damage to Japanese. As the Japanese lost power in the later stage of the war, the Communist forces became stronger in rural areas. The battle for grains turned to conflicts between Nationalists and Communists. Therefore, the fights in Japanese-occupied Shanxi had a double nature-the resistance to Japanese and civil war.