Assassination of Franz Ferdinand and the outbreak of World War I
- Date
- 28 June – 4 August 1914
- Category
- Military & conflict
- Region
- Europe (Balkans / Austria-Hungary)
- Era
- Modern
- Significance
On 28 June 1914 Archduke Franz Ferdinand, heir to the Austro-Hungarian throne, and his wife Sophie were shot dead in Sarajevo by Gavrilo Princip, a Bosnian Serb member of the Young Bosnia movement.
The killing triggered the July Crisis: backed by Germany's 'blank cheque', Austria-Hungary issued an ultimatum to Serbia and declared war on 28 July. Through interlocking alliances and mobilisation timetables, the conflict expanded within days. Russia mobilised in support of Serbia; Germany declared war on Russia (1 August) and France (3 August) and invaded neutral Belgium, prompting Britain's declaration of war on 4 August. What began as a regional Balkan dispute became a continental and then a global war drawing in the European empires and their colonies, dominions, and trading partners across Africa, Asia, the Middle East, and the Pacific. The war's scale, industrial mass mobilisation, and eventual death toll of roughly 9–10 million combatants reshaped the international order.
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Empires active in 28 June – 4 August 1914
- Empire of Japan1868 CE – 1947 CE
- French Colonial Empire (Second)1830 CE – 1962 CE
- German Empire1871 CE – 1918 CE
- Russian Empire1721 CE – 1917 CE
- British Empire1583 CE – 1997 CE
- Spanish Empire1492 CE – 1976 CE
Related military & conflict events
- Russo-Japanese War and Japan's Rise as a Great Power1904–1905
- Italy Invades Ethiopia1935–1936
- Second Sino-Japanese War and the Nanjing Massacre7 July 1937 – 2 September 1945
- German invasion of Poland and outbreak of World War II1 September 1939
- Attack on Pearl Harbor7 December 1941
- Operation Barbarossa: German invasion of the Soviet Union22 June 1941
Further reading
If you read one book
The Sleepwalkers: How Europe Went to War in 1914
Acclaimed account of how Europe stumbled into war.
Get it on Amazon →Also worth reading
- The Trigger: Hunting the Assassin Who Brought the World to War — Amazon →
The Trigger: Hunting the Assassin Who Brought the World to War
Vivid retracing of Gavrilo Princip's path to the shot that lit 1914.
Get it on Amazon → - July 1914: Countdown to War — Amazon →
July 1914: Countdown to War
Day-by-day account of the diplomatic crisis after Franz Ferdinand's murder.
Get it on Amazon →
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