対華21カ条要求
When World War I broke out in 1914, Japan fought on the Allied side and seized German holdings in Shandong Province. In 1915 the Japanese set before the government in Beijing the so-called Twenty-One Demands, aimed at securing Japanese economic controls in railway and mining operations in Shandong, Manchuria and Fujian. The Japanese also pressed to have Yuan Shikai appoint Japanese advisors to key positions in the Chinese government. The Twenty-One Demands would have made China effectively a Japanese protectorate. The Beijing government rejected some of these demands but yielded to the Japanese insistence on keeping the Shandong territory already in its possession. Beijing also recognized Tokyo's authority over southern Manchuria and eastern Inner Mongolia. Yuan's acceptance of the demands was extremely unpopular, but he continued his monarchist agenda nevertheless.