Introduction to the second exhibition hall: The second part of the negotiation and adaptation mainly introduces the negotiations and adaptation of the Red Army guerrillas in 14 regions in eight southern provinces before and after the establishment of the New Fourth Army, as well as the New Fourth Army Military Headquarters, the New Fourth Army Branch of the Central Military Commission, and the Southeast of the Central Committee of the Communist Party of China The branch established the New Fourth Army in Nanchang and commanded the war of resistance behind enemy lines in central China and carried out anti-Japanese and national salvation propaganda work.