In 1919 , after the First World War , the Japanese took over the German sphere of influence in Shandong , including control of the Jiaoji railway .
In 1919 , after the First World War , the Japanese established a significant Japanese influence in Jinan .
In 1919 , after the First World War , the Japanese took over the German sphere of influence in Shandong , including control of the Jiaoji railway , and established a significant Japanese influence in Jinan .