In The Great War/ World War One was fought in Europe between two groups.
- European countries began to form alliances with other countries after the assassination of Archduke Franz Ferdinand (the heir of Austria-Hungary).
- The killing forced nations to form alliances, which were later called the Allies and the Central Powers.
- The Central Powers formed with nations like Germany, the Ottoman Empire and Austria-Hungary joined the group.
- The Allies Powers included Britain, Russia, Italy, France and the United States.
Therefore we can conclude that World War I divided groups into two after the assassination.
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