The second front is an integral part of the people's revolutionary struggle in China, which directly cooperated with the people's liberation war. Therefore, it occupies an important position in the history of China People's Liberation War. Politically exposed and isolated the U.S.-Chiang reactionaries, and expanded the influence of China's * * * production party. The anti-American and anti-violence struggle promoted the withdrawal of American troops in China and the change of American policy toward China, and weakened the obstacles on the road of China people's liberation to some extent. The May 20th Movement put forward the slogan "Down with Chiang Kai-shek and Liberate All China" for the Central Committee, which created important conditions and directly promoted the process of the China revolution. The development of the patriotic and democratic movement also directly contained the strength of the Kuomintang and weakened its frontline strength. Students, workers and peasants have been tempered and tested in the struggle and become the basic forces to support the war of liberation and cooperate with the people's army to take over the city. The great achievements of the second battlefield will go down in history forever!