World War I: Causes, Key Events, and Global Impact (1914–1918)

World War I reshaped global politics and introduced industrial-scale warfare. This log summarizes its major causes, turning points, and long-term consequences.

Key Points

Triggered by the assassination of Archduke Franz Ferdinand in June 1914.

Root causes included nationalism, imperial rivalry, secret alliances, and militarization.

Major fronts: Western Front, Eastern Front, Middle East, and Africa.

Key events: Battle of the Marne, Gallipoli Campaign, Verdun, Somme, Russian withdrawal (1917), U.S. entry (1917).

Collapse of German, Austro-Hungarian, Ottoman, and Russian empires.

Ended with the Armistice of November 11, 1918.

Led to the Treaty of Versailles and conditions that later contributed to World War II.