Battle of Hundreds of Regiments

In 1940, the world anti-fascist battlefield entered its most difficult period. On the European front, after the Nazi army's blitzkrieg in Poland, they quickly took down the Netherlands, Belgium, Luxembourg, and Norway. On June 14, 1940, France, which was called one of the world's great powers, surrendered, and Hitler reviewed the troops in front of the Arc de Triomphe, boasting that he would implement Operation Sea Lion to attack Britain. The Soviet Union, which had been supporting China, could only sign a ceasefire agreement on the Manchurian-Mongolian border with Japan to avoid being attacked from both sides. Meanwhile, in China, the Kuomintang army on the front line was suffering continuous defeats. In order to resist the Japanese army's attacks, during the brutal Battle of Zaoyi, Major General Zhang Zizhong (played by Deng Chao) sacrificed himself for his country, leading to the loss of the Jianghan Plain and most of Central China to the Japanese. In Yan'an, Shaanxi, amid frequent bombings by Japanese bombers, Mao Zedong (played by Tang Guoqiang), Zhu De (played by Wang Wufu), and other Communist leaders were deeply worried about China's future. They decided that at this time, the Communist Party and the Eighth Route Army and New Fourth Army under their leadership must step forward, break the rhetoric of national destruction and surrender, inject hope into the world anti-fascist battlefield, and deal a heavy blow to the invading Japanese army. Meanwhile, distant from the enemy in Shanxi, at the headquarters of the Eighth Route Army, Deputy Commander Peng Dehuai (played by Tao Zeru) and Deputy Chief of Staff Zuo Quan (played by Liu Zhibing) were also diligently planning and preparing in detail and under great tension on how to implement the spirit of the Central Committee of the Communist Party and break the Japanese army's policy of confinement.