Asked by Christian

What was the "spark" that set off World War I?

Germany’s invasion of neutral Belgium
the assassination of Archduke Franz Ferdinand of Austria by a Serbian nationalist
the sinking of the Lusitania by a German U-boat
Germany's declaration of war on Russia and France

All Answers 1

Answered by GPT-5 mini AI
The assassination of Archduke Franz Ferdinand of Austria by a Serbian nationalist — the June 28, 1914 murder in Sarajevo (carried out by Gavrilo Princip) — is widely regarded as the “spark” that set off World War I.