How did poetry develop after the outbreak of the Anti-Japanese War?

After the outbreak of the Anti-Japanese War, the July Poetry School was the most important lyric poetry school in the Kuomintang-controlled areas, and its activities ran through War of Resistance against Japanese Aggression and the War of Liberation. When Tian Tian and Ai Qing successively entered the liberated areas, under the new historical conditions, the ideological content and form of their poems gradually changed, which also distanced them from the styles of most July poets. Another poet, Lu Li, lived in the Liberated Area for a long time after the Anti-Japanese War, and his style changed little. Hu Feng once counted 39 people who published poems in July. Nine times out of ten, he is a newcomer, which shows the contribution of July in promoting the creation of anti-Japanese war poems. After the Southern Anhui Incident, it was forced to stop publishing in July. But their creation didn't stop. After 1945, publications such as Hope, Earth and Breath became their main positions.