Why is it said that this murder could be considered as a cause of the First World War? Confirm the veracity of this statement. Argue.

It is often said that the murder of Archduke Franz Ferdinand is what caused the First World War.  This is because Austria-Hungary was outraged by the death of the Duke and planned to retaliate. There were massive protests and uproar, and it has since been argued that the death of Archduke Franz Ferdinand was what lead to the First World War.

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