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Franz Ferdinand's assassination
Heir of the of the Austro-Hungarian throne, Archduke Franz Ferdinand was murdered in Sarajevo by Gavrilo Princip, a member of the Black Hand Gang. -
World War I begun
Austria declared war on Serbia -
Germany declared war on Russia
Germany had an alliance with Austria-Hungary, so they declare war o Russia -
Germany declared war on France
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The Great War
Britain declared war on Germany
The Triple Alliance (Germany, Austria-Hungary and Italy) against
The Triple Entente (France, Britain and Russia) -
Period: to
Battle of the Somme
A trench war in which around a million soldiers were killed