As a result, the revolutionary literary and art circles have launched a sharp debate for nearly half a year around these two slogans, such as literature and art serving the anti-Japanese struggle. Zhou Yang also wrote articles such as About National Defense Literature, Literature at the Present Stage and Slogan of National Defense Literature with Mr. Mao Dun. 1936 10, as the result of this debate, contributed to the publication of the Declaration on Freedom of Speech and Resistance to Unity in the Literary and Art Circles, and 2 1 people signed it on behalf of various literary and art factions. The publication of the declaration not only marked that the left-wing literary and art circles unified their understanding and thoughts through arguments and achieved closer unity, but also laid the foundation for the establishment and development of the anti-Japanese literary and art movement later. After the outbreak of War of Resistance against Japanese Aggression, the anti-Japanese literature movement began to flourish. With the establishment of the anti-Japanese national United front based on ethnic cooperation, various national United front organizations have also been established in the literary and art circles. On March 27th, 1938, the All-China Anti-Enemy Association of Literary and Art Circles was established in Wuhan. Its slogan is "articles go to the countryside, articles join the army". Based on the creative purpose of "inspiring the people and inspiring the soldiers", the writer is called upon to actively integrate into the masses of workers, peasants and soldiers and devote himself to the real struggle. The meeting elected 45 directors, including Guo Moruo, Mao Dun, Ding Ling, Tian Han, Lao She, Yu Dafu, Ba Jin, Zhang Daopan, Hu, Cao Yu and Zhu Ziqing, as honorary directors, and Zhou Yang as alternate director. Later, the Federation of Literary and Art Circles was established in Shanghai, Kunming, Guangzhou, Hong Kong and Yan 'an. In May of the same year, Zhou Yang published Literature during the Anti-Japanese War, which theoretically expounded the creative direction of revolutionary literature in the special period.