(This short animated video shows a map of Western Europe just prior to World War One.
The video zooms in and highlights Sarajevo in the south of the Austria-Hungary Empire)
"On June 28, 1914 Serbian fanatic, Gavrilo Princip, assassinates Archduke
Franz-Ferdinand of Austria in Sarajevo."
(The map changes shading to show that Austria-Hungary is a Central Powers country and
Serbia is an Allied Powers country. Serbia is near Sarajevo)
"One month later, on July 28, 1914, Austria declares war against Serbia- igniting World
War 1."
(The map zooms back out to show Russia now shaded like Serbia)
"A war between Austria and Serbia, meant a war between Austria and Russia- Serbia's
traditional ally."
(The map changes to show Germany shaded like Austria-Hungary)
"War between Austria and Russia meant Germany, bound by the Triple Alliance treaty
to Austria, was at war with Russia."
(The map changes again to show France and Great Britain shaded like Russia and Serbia)
"Russia at war with Germany, meant France and Britain, bound by alliances with Russia
known as the Triple Entente, were also at war with Germany. Italy remained neutral until
23 May 1915, when it entered the war on the side of the Allies.