cover image

World War I

1914–1918 global conflict / From Wikipedia, the free encyclopedia

Dear Wikiwand AI, let's keep it short by simply answering these key questions:

Can you list the top facts and stats about World War I?

Summarize this article for a 10 years old


World War I (28 July 1914 – 11 November 1918), often abbreviated as WWI, was a global conflict fought between two coalitions, the Allied Powers and the Central Powers. Fighting took place throughout Europe, the Middle East, Africa, the Pacific, and parts of Asia.

World War I
From the top, left to right:
Date28 July 191411 November 1918
(4 years, 3 months and 2 weeks)
Result Allied Powers victory
See Aftermath of World War I
Allied Powers:
 and its territories:
and others ...
Central Powers:
Commanders and leaders
Main Allied leaders: Main Central leaders:
Casualties and losses
  • Military dead:
  • Over 5,525,000
  • Civilian dead:
  • Over 4,000,000
  • Total dead:
  • Over 9,000,000
  • ...further details
  • Military dead:
  • Over 4,386,000
  • Civilian dead:
  • Over 3,700,000
  • Total dead:
  • Over 8,000,000
  • ...further details

The first decade of the 20th century saw increasing diplomatic tension between the European great powers. This reached a breaking point on 28 June 1914, when a Bosnian Serb named Gavrilo Princip assassinated Archduke Franz Ferdinand, heir to the Austro-Hungarian throne. Austria-Hungary held Serbia responsible, and declared war on 28 July. Russia came to Serbia's defence, and by 4 August, Germany, France and Britain were drawn into the war, with the Ottoman Empire joining in November the same year.

German strategy in 1914 was to first defeat France, then transfer forces to the Russian front. However, this failed, and by the end of 1914, the Western Front consisted of a continuous line of trenches stretching from the English Channel to Switzerland. The Eastern Front was more dynamic, but neither side could gain a decisive advantage, despite costly offensives. As the war expanded to more fronts, Bulgaria, Romania, Greece, Italy and others joined in from 1915 onward. In early 1917, the United States entered the war on the side of the Allies, and later the same year, the Bolsheviks seized power in the Russian October Revolution, making peace with the Central Powers in early 1918. Germany launched an offensive in the west in March 1918, but despite initial success, it left the German Army exhausted and demoralised. A successful Allied counter-offensive later that year caused a collapse of the German frontline. By the end of 1918, Bulgaria, the Ottoman Empire and Austria-Hungary agreed to armistices with the Allies, leaving Germany isolated. Facing revolution at home and with his army on the verge of mutiny, Kaiser Wilhelm II abdicated on 9 November. An armistice three days later ended the fighting, and the Paris Peace Conference imposed various settlements on the defeated powers, notably the Treaty of Versailles.

World War I was one of the deadliest wars in history, and resulted in an estimated 9 million soldiers dead and 23 million wounded, while 5 million civilians died due to military action, hunger and disease. Millions more died as a result of genocide, and the devastation of the war heavily contributed to the 1918 Spanish flu pandemic. The dissolution of the Russian, German, Austro-Hungarian, and Ottoman Empires resulted in the creation of new independent states, including Poland, Finland, Czechoslovakia, and Yugoslavia. The inability to manage post-war instability contributed to the outbreak of World War II in September 1939.