Japan during World War I July 1916, Japan and Russia signed a treaty whereby each pledged not to make a separate peace with Germany, and agreed to consultation and common action should the territory or interests of each in China be threatened by an outside third party. Although Russia had a claim to Chinese territory by the Kyakhta and other treaties, Japan discouraged Russia from annexing Heilongjiang and began to slowly push the other powers out, such as the Germans in the Twenty-One Demands (1915). The delineating line between Russian (north) and Japanese (south) spheres of influences in China was the Chinese Eastern Railway. On
Postage stamps and postal history of Germany for the various colonial territories which had a uniform appearance depicting the imperial yacht "SMY Hohenzollern". After Germany lost control of its colonies in the course of World War I, overprinted yacht stamps were temporarily used by the new colonial rulers. Imperial Germany maintained post offices in certain towns in Morocco, Turkey, and China. Issued stamps can be recognized by the cancellation stamp or the overprint may show local denomination and the name of the country. During World War I, German authorities issued stamps in occupied countries, namely Belgium, Poland, Romania, and areas of the western and eastern front. The