Question

Who participated in World War I?

Answer 1

Germany, Austria-Hungary, Bulgaria, the Ottoman Empire, Great Britain, France, Russia, Italy, Romania, Japan and the United States.

Step-by-step explanation:

World War I began in 1914, after the assassination of Archduke Franz Ferdinand, and lasted until 1918. The Central Powers(Germany, Austria-Hungary and the Ottoman Empire) fought against the Allied Powers (Great Britain, France, Russia, Italy and the United States).

Answer 2

Answer: During the conflict, Germany, Austria-Hungary, Bulgaria and the Ottoman Empire (the Central Powers) fought against Great Britain, France, Russia, Italy, Romania, Japan and the United States (the Allied Powers).