Germany had was the one country that was involved in World War l and World War ll
Im not going to list them all so…http://en.wikipedia.org/wiki/Allies_of_World_War_IIhttp://en.wikipedia.org/wiki/Axis_powers_of_World_War_II
World War I started 28 July 1914 and ended 11 November 1918. World War II started 3 September 1939 and ended 2 September 1945.
Switzerland, San Marino, Sweden, Leichenstein, Spain, Portugal and Ireland.
Countries Involved: in WW1. ---- Albania Arabia Austria-Hungary Belgium and colonies Brazil Bulgaria China Costa Rica Cuba Czechoslovakia Estonia Finland France and Empire Great Britain and Empire...