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World War I - Events After the Assassination of the Archduke of Austria
. In 1914 Britain was still an empire. All of Britain's territories overseas entered the war on
Britain's side. Their entrance extended the war beyond the boundaries of Europe.
Australia, Canada, India, New Zealand, and the Union of South Africa joined the fighting.
· Japan had military ties to Britain. Soon Japan declared war on Germany. In response,
Austria-Hungary declared war on Japan.
• The United States declared that it would remain neutral. However, this policy of
neutrality could not last forever.