Political map of Europe & the Mediterranean 27 November 1919 (Treaty of Neuilly): In November 1919 the Bulgaria signed its Peace Treaty (Treaty of Neuilly-sur-Seine) with the Allies (Allies of World War I). As a result, it lost territory to Yugoslavia and Greece. Meanwhile in the north, German troops (Freikorps in the Baltic) were finally being expelled from Latvia and Lithuania. The Allies had previously allowed them to stay in order to fight the Bolsheviks (Bolsheviks) but now saw them as trouble makers.