Battlefield: Battlefield behind enemy lines, establishment of anti-Japanese base areas (Shaanxi-Gansu-Ningxia Border Region is the command center of anti-Japanese base areas behind enemy lines in China, and Yan 'an is the seat of the Central Committee. )

The significance of the battlefield behind enemy lines:

On the frontal battlefield, the Kuomintang army actually contained the main force of the Japanese invaders, but due to tactics, equipment, policies and other reasons, the frontal battlefield was not successful. Although guerrilla warfare is the main battlefield behind our enemy lines, our army is relatively weak, but because of its strong mobility and high concealment, it has hit the Japanese army to some extent with the frontal battlefield! Especially after crossing the river, Japan's troops were insufficient and the front line was too long, which gave space for small-scale operations behind enemy lines. China's victory in the Anti-Japanese War was contained by the frontal battlefield, while the enemy was consumed by the battlefield behind enemy lines. Although there are contradictions between the two fronts, they still cooperate with each other in cooperation between the two countries.

The battlefield behind enemy lines became the main battlefield of War of Resistance against Japanese Aggression, which was decisive for the victory of the Anti-Japanese War, but Chiang Kai-shek's troops in the battlefield behind enemy lines became yellow.