World War I By vollmem20 Period: Apr 10, 1861 to Apr 10, 1871 system of alliances Unification of of Germany an that of Italy had changed the balance of power in Europe Apr 10, 1871 defeat in Franco-prussian war Apr 10, 1888 William II became kaiser of Germany Period: Apr 10, 1890 to Apr 10, 1895 Germany began enlarging its navy Period: Apr 10, 1914 to Apr 10, 1918 war in middle east Jun 28, 1914 Powder Keg Aug 1, 1914 Germany declared war on Russia Aug 4, 1914 German soldiers marched into Belgium Apr 10, 1916 Britain introduced the tank Apr 6, 1917 wilson adressed congress to declare war on Germany Nov 7, 1917 Bolsheviks took control of Russia Nov 11, 1918 German delegation signed which stopped all fighting Sep 10, 1919 Treaty of Austria was signed Period: Apr 10, 1920 to Apr 10, 1940 59 nations joined League of Nations