In the first week of World War I Japan proposed to the United Kingdom, that Japan would enter the war if it could take Germany's Pacific territories. On 7 August 1914, the British … See more

With Japan's European allies heavily involved in the war in Europe, Japan sought to further consolidate its position in China by presenting the Twenty-One Demands to … See more

On 18 December 1916 the British Admiralty again requested naval assistance from Japan. The new Japanese cabinet under Prime Minister Terauchi Masatake was more favorably inclined to provide military assistance, provided that the British … See more

In 1918, Japan continued to extend its influence and privileges in China via the Nishihara Loans. Following the Bolshevik Revolution in Russia, Japan and the United States sent forces to Siberia in 1918 to bolster the armies of the White movement leader Admiral See more

The year 1919 saw Japan's representative Saionji Kinmochi sitting alongside the "Big Four" (Lloyd George, Wilson, Clemenceau, Orlando) leaders at the Paris Peace Conference. Tokyo gained a permanent seat on the Council of the League of Nations, … See more

The prosperity brought on by World War I did not last. Although Japan's light industry had secured a share of the world market, Japan returned to debtor-nation status soon after the end of the war. The ease of Japan's victory, the negative impact of the Shōwa recession in … See more

• Asian and Pacific theatre of World War I
• Diplomatic history of the First World War See more