北京議定書
The Boxer Rebellion once more saw a critical battle fought for the Taku Forts. After the capture of Beijing by the Eight Nation Alliance, the Qing Court was forced to sign the Boxer Protocol, which further increased the size of the Concessions (now including nine countries), and granted the foreign occupation of Tanggu. This led to significant development of the Tanggu port by all the various foreign powers. Wharves by British, German, Japanese and American companies were built (mostly on the northern shore of the Haihe), and by 1940, Tanggu had 56 berths amounting to 6,090 m of quayside