Non-European Participants in World War I: Ottoman Empire, Japan, USA, China

World War I was truly global. Key non-European participants:

Ottoman Empire (Central Powers)

• Entered Nov 1914 (German alliance).
• Fought British/ANZAC (Gallipoli, Palestine, Mesopotamia), Russians (Caucasus).
• Armenian Genocide (1915–17) during war.
• Collapsed 1918 → Treaty of Sèvres → Turkish War of Independence.

Japan (Allied Powers)

• Entered Aug 1914 (Anglo-Japanese Alliance).
• Seized German Pacific colonies: Tsingtao (China), Mariana, Caroline, Marshall Islands.
• Sent destroyers to Mediterranean (Malta) for convoy escort.
• Gained mandate over former German Pacific islands (Versailles).

United States (Associated Power)

• Entered Apr 1917 (unrestricted submarine warfare, Zimmermann Telegram).
• 4.7M mobilized; 2M to France (AEF under Pershing).
• Decisive in 1918 offensives (St. Mihiel, Meuse-Argonne).
• Wilson's Fourteen Points shaped peace.

China (Allied Powers)

• Entered Aug 1917 (reclaim German concessions in Shandong).
• Sent ~140,000 laborers (Chinese Labour Corps) to Western Front — dug trenches, repaired tanks, cleared mines.
• ~10,000 died. Denied Shandong at Versailles → May Fourth Movement.

Others

• Brazil (1917, naval/medical), Siam (1917, expeditionary force), Liberia (1917), Haiti, Honduras, Guatemala, Cuba, Panama — declared war, minimal military role.