World War 1 was a global war that lasted from 1914 to 1918.

The causes of the war were complex and multifaceted, but some of the key factors that led to the outbreak of war included the complex network of alliances between the major powers, the rise of nationalism, and growing economic and political tensions between European powers. In particular, the system of alliances that had developed in Europe meant that when one country declared war, its allies were automatically drawn in, leading to a domino effect that ultimately resulted in the involvement of multiple countries.

The major powers involved in the conflict included the Allies (led by France, Russia, and the United Kingdom) and the Central Powers (led by Germany, Austria-Hungary, and the Ottoman Empire).

Political tensions and rivalries between these powers had been growing for years, and the assassination of Archduke Franz Ferdinand of Austria-Hungary in 1914 was the spark that set off the war.
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