Germany–Japan relations Germany–Japan relations The relations between Germany and Japan (, ) were officially established in 1861 with the first ambassadorial visit to Japan from Prussia (which predated the formation of the German Empire in 1866/1870). Japan modernized rapidly after the Meiji Restoration of 1867, often using German models through intense intellectual and cultural exchange. After 1900 Japan aligned itself with Britain, and Germany and Japan were enemies in World War I. Japan declared war on the German Empire in 1914 and seized key German possessions in China and the Pacific. In the 1930s, both countries adopted aggressive militaristic attitudes toward their
Asian and Pacific theatre of World War I on Germany. The German and Austro-Hungarian concessions in Tientsin and Hankow were occupied and their nationals detained. An even more serious plot was Germany's funding of the Constitutional Protection Movement, which geographically split China into two rival governments for eleven years. Asian and Pacific theatre of World War I The Asian and Pacific theatre of World War I consisted of various naval battles and the Allied conquest of German colonial possessions in the Pacific Ocean and China. The most significant military action was the careful and well-executed Siege of Tsingtao in what is now China, but smaller actions were also