Japanese involvement in the
First World War, 1914-18


During WW1, Japan honoured the Anglo-Japanese Alliance of 1902 as it entered the war against Germany and it’s allies.


In 1915, they released their 21 demands of China. Prior to joining the War, the allies had promised them the recognition of Japanese control over previously German-administered areas of China, including the Shandong province. However, their demands resulted in anger in China, and protests in major chinese cities. (see 1919: The May the Fourth Movement)