Introduction to No. 13 Hongyan Village: The Hongyan Village Eighth Route Army Office Building in Chongqing is located at No. 13 Hongyan Village, Hualongqiao, Shapingba District. From May 1939 to May 1946, this was the former office site of the Eighth Route Army. Mao Zedong, Zhou Enlai, Ye Jianying, Dong Biwu, Deng Yingchao, etc. all worked here. When Mao Zedong was in Chongqing, he used it to direct the national revolutionary struggle.