How did World War I begin?
How did World War I begin?
user
In 1914, the assassination of Archduke Franz Ferdinand, heir to the throne of the Austro-Hungarian empire, sparked war in Europe.
assistant
Who killed Archduke Franz Ferdinand?
user
The assassin was a Serbian nationalist who hoped to start a war between Serbia and Austria.
assistant
Why did it cause World War I?
user
In the years leading up to the war, nations were making aggressive political and territorial gains in Europe, leading to tensions and armament.  The assassin of the archduke knew this, and believed that if Serbia started a war with Austria, the surrounding nations would also have to fight against each other.
assistant
Why did other European countries get involved?
user