Which war did the assassination of Archduke Franz Ferdinand of Austria lead to?

Archduke Franz Ferdinand of Austria and his wife Sophie were shot to death by a Bosnian Serb nationalist during an official visit to the Bosnian capital of Sarajevo on June 28, 1914. The killings sparked a chain of events that led to the outbreak of World War I by early August.

The assassination set off a rapid chain of events, as Austria-Hungary immediately blamed the Serbian government for the attack. As large and powerful Russia supported Serbia, Austria asked for assurances that Germany would step in on its side against Russia and its allies, including France and possibly Great Britain. On July 28, Austria-Hungary declared war on Serbia, and the fragile peace between Europe’s great powers collapsed, beginning the devastating conflict now known as the First World War.

On June 28, 1919, five years to the day after Franz Ferdinand’s death, Germany and the Allied Powers signed the Treaty of Versailles, officially marking the end of World War I.