Soviet Zone (1927–1937) 蘇區 Anti-Japanese Base Areas (1937–1946) 抗日根據地 Liberated Zone (1946–1949) 解放區 1927–1949 Flag of the Chinese Red Army; Left: 1928–1934...

battles against the Japanese army, they set up the Jin–Ji–Yu Base Area (晉冀豫抗日根據地) which consisted of parts of Shanxi, Hebei and Henan. In 1940, Liu led his...