While the Treaty of Berlin (1878) awarded large parts of Epirus to Greece, opposition by the Ottomans and the League of Prizren resulted in only the region of Arta being ceded to Greece in 1881. It was only following the First Balkan War of 1912–1913 and the Treaty of London that the rest of southern Epirus, including Ioannina, was incorporated into Greece. Greece had also seized northern Epirus during the Balkan Wars, but the Treaty of Bucharest, which concluded the Second Balkan War, assigned Northern Epirus to Albania.