History quiz

Who was the war between in World War 1?

Allied Powers:

- France

- Russian Empire

- United Kingdom

- Italy (from 1915)

- United States (from 1917)

- Japan

- Romania (from 1916)

- Serbia

- Belgium

- Greece (from 1917)

- Portugal

- Brazil (from 1917)

- China (from 1917)

- Cuba (from 1917)

- Panama (from 1917)

- Siam (from 1917)

Central Powers:

- German Empire

- Austria-Hungary

- Ottoman Empire

- Bulgaria (from 1915)