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World War I was a global conflict that lasted from 28 July 1914 to 11 November 1918, involving two coalitions of Allies and Central Powers. The war was triggered by the assassination of Archduke Franz Ferdinand and resulted in millions of deaths, territorial changes, and the formation of new countries.
- Overview
- The outbreak of war
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World War I began after the assassination of Austrian archduke Franz Ferdinand by South Slav nationalist Gavrilo Princip on June 28, 1914.
Read more below: The outbreak of war
Balkan Wars
Read more about why the Balkans became the “powder keg of Europe.”
What countries fought in World War I?
The war pitted the Central Powers (mainly Germany, Austria-Hungary, and Turkey) against the Allies (mainly France, Great Britain, Russia, Italy, Japan, and, from 1917, the United States).
With Serbia already much aggrandized by the two Balkan Wars (1912–13, 1913), Serbian nationalists turned their attention back to the idea of “liberating” the South Slavs of Austria-Hungary. Colonel Dragutin Dimitrijević, head of Serbia’s military intelligence, was also, under the alias “Apis,” head of the secret society Union or Death, pledged to the pursuit of this pan-Serbian ambition. Believing that the Serbs’ cause would be served by the death of the Austrian archduke Franz Ferdinand, heir presumptive to the Austrian emperor Franz Joseph, and learning that the Archduke was about to visit Bosnia on a tour of military inspection, Apis plotted his assassination. Nikola Pašić, the Serbian prime minister and an enemy of Apis, heard of the plot and warned the Austrian government of it, but his message was too cautiously worded to be understood.
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At 11:15 am on June 28, 1914, in the Bosnian capital, Sarajevo, Franz Ferdinand and his morganatic wife, Sophie, duchess of Hohenberg, were shot dead by a Bosnian Serb, Gavrilo Princip. The chief of the Austro-Hungarian general staff, Franz, Graf (count) Conrad von Hötzendorf, and the foreign minister, Leopold, Graf von Berchtold, saw the crime as the occasion for measures to humiliate Serbia and so to enhance Austria-Hungary’s prestige in the Balkans. Conrad had already (October 1913) been assured by William II of Germany’s support if Austria-Hungary should start a preventive war against Serbia. This assurance was confirmed in the week following the assassination, before William, on July 6, set off upon his annual cruise to the North Cape, off Norway.
The Austrians decided to present an unacceptable ultimatum to Serbia and then to declare war, relying on Germany to deter Russia from intervention. Though the terms of the ultimatum were finally approved on July 19, its delivery was postponed to the evening of July 23, since by that time the French president, Raymond Poincaré, and his premier, René Viviani, who had set off on a state visit to Russia on July 15, would be on their way home and therefore unable to concert an immediate reaction with their Russian allies. When the delivery was announced, on July 24, Russia declared that Austria-Hungary must not be allowed to crush Serbia.
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World War I started on July 28, 1914, with the assassination of Austrian Archduke Franz Ferdinand by a Serb nationalist in Sarajevo. It ended on November 11, 1918, with the defeat of the Central Powers by the Allies.
29 de out. de 2009 · World War I started in 1914 after the assassination of Archduke Franz Ferdinand of Austria and lasted until 1918. Learn about the causes, events and consequences of the Great War that involved millions of soldiers and civilians.
Learn about the causes, events, and consequences of World War I, also known as the Great War, from 1914 to 1918. Explore the timeline, special features, and lists of leaders, weapons, and topics related to the war.
World War I broke out in 1914 after the assassination of Archduke Franz Ferdinand of Austria and lasted until 1918. Learn about the causes, battles, alliances and consequences of the war that changed the world.
World War I started on July 28, 1914, after the assassination of Austrian Archduke Franz Ferdinand. It ended on November 11, 1918, with the armistice between Germany and the Allies. Learn more about the causes, events, and consequences of the war.
11 de abr. de 2019 · World War I, also known as The Great War, was a global conflict that lasted from 1914 to 1918. It was triggered by the assassination of Archduke Franz Ferdinand and involved many European powers and their colonies.
