On August 15, 1945, Japan announced its unconditional surrender, and the fourteen-year war of resistance against Japan came to an end. However, the war did not subside. Until the end of 1945, there was another county in the south of Jiangsu that was still occupied by the Japanese army, which was Gaoyou city. On December 19, 1945, the central China Field Army of the new fourth army launched a final attack on the Japanese army who refused to surrender in Gaoyou. On December 26, after the victory of the Gaoyou campaign, Suyu received the saber presented by Japanese Senior Minister Iwasaki in an auditorium in the people's Park, and Gaoyou finally ushered in its liberation. This is the last battle of the Chinese people's war of resistance against Japan and the last City liberated in the war resistance against Japan. 70 years later, the smoke of war has long dissipated, and the place where the Japanese invaders surrendered to the New Fourth Army is still standing in the center of the downtown, quietly telling that magnificent historical moment. For more than 70 years after the war, the "Park auditorium" (the place where the Japanese army surrendered at that time) has been mixed with the Gaoyou martyr cemetery, people's Park, university for the elderly, old government office building, state department head gate, and various civilian houses. The surrounding environment is quite poor. In 2015, in order to commemorate the 70th anniversary of the victory of the Anti-Japanese War, the Gaoyou municipal government hopes to organically integrate the memorial hall of the last battle with the surrounding environment and the city through design. At the same time, an auxiliary Pavilion will be added to display the historical materials of the Anti-Japanese war as a supplement to the pavilion of the last battle. And a new tourist center will be built as a supporting facility for the whole park.