The major combatants in World War I were the Central Powers of Germany, Austria-Hungary, Bulgaria and the Ottoman Empire versus the Allied Forces of Great Britain, France, the United States, Russia, Italy and Japan. In a... More »

World War I was fought from July 28, 1914 to Nov. 11, 1918. The war ended with nearly 10 million dead and 20 million wounded. The German, Austro-Hungarian and Ottoman empires collapsed, leaving geopolitical divisions tha... More »

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World War II was won in 1945 by the main Allied powers, which consisted of the United States, Great Britain, China and the Soviet Union, that formed the primary alliance against the opposing Axis alliance. More »

During World War I, Germany, Austria and the other countries in the Ottoman Empire formed the Central Powers and fought against the Allied Powers, which consisted of Russia, Japan, Great Britain, Italy and France. The wa... More »

The United States entered World War I on April 6, 1917, joining the Allied Powers of Great Britain, France, Italy and Russia in the fight against the Central Powers of Germany, the Austrian-Hungarian Empire, the Ottoman ... More »

The countries and empires that fought in World War I included the United Kingdom, France, Germany, Austria-Hungary, the Ottoman Empire and Bulgaria. Other powers were Greece, Italy, Japan, Montenegro, Portugal Romania, R... More »

The Central Powers in World War I consisted of Germany, Austria-Hungary, Bulgaria and the Ottoman Empire. They were so-called because the four countries lay between Russia in the east and the United Kingdom and France in... More »