Causes of World War I By csharkey Jun 28, 1914 Spark of World War I -> assassination of Archduke Franz Ferdinand in Sarajevo Jul 28, 1914 Austria-Hungary declared war on Serbia Aug 1, 1914 Germany who allied with Austria-Hungary, declared war on Russia Aug 3, 1914 France bounded a treaty with Russia, found itself in war against Germany and in extension woth Austri-Hungary Aug 4, 1914 Britain allied with France and declared war on Germany to defend France and Germany invaded Belgium Aug 6, 1914 Austria-Hungary declares war on Russia and Serbia declares war on Germany Aug 23, 1914 Japan declared war on Germany Aug 25, 1914 Austria-Hungary responded to Japans war declare on Germany and declared war on them Aug 26, 1914 Battle of Tannenburg begins Aug 28, 1914 Germany declares war on Belgium
