World War I was a global conflict that lasted from 1914 to 1918, involving more than 70 million military personnel from various countries. It was one of the deadliest wars in history and its impact on the world was profound. The war was primarily fought between the Allied Powers, which included the United Kingdom, France, and Russia, and the Central Powers, which included Germany, Austria-Hungary, and the Ottoman Empire. The causes of World War I were complex and multi-faceted. The war was triggered by the assassination of Archduke Franz Ferdinand of Austria-Hungary by Serbian nationalist Gavrilo Princip in June 1914.
This event led to a series of diplomatic crises and military mobilizations that eventually escalated into full-scale war. Other factors that contributed to the outbreak of the war included imperialism, nationalism, and the system of alliances that existed between the major European powers. The war was fought on multiple fronts, with major battles taking place in Europe, Africa, the Middle East, and Asia. Some of the most significant battles of the war included the Battle of the Somme, the Battle of Verdun, and the Battle of Gallipoli.
