Regions of nationalist tensions increased in Europe after 1871.Balkans was composed of modern Romania, Albania, Greece, Macedonia, Croatia, Bosnia-Herzegovina, Slovenia, Serbia and Montego, broadly inhabited by slaves.Balkans was under control of Ottoman Empire all through the 19th century.The Salvia nationalists struggled to define their identity and independence.Matters got further complicated with declining power of Ottoman Empire in Balkans.Taking advantage of the situation, the European powers-Russia, Germany, England and Austria-Hungary competed with one-another to extend control over this area.