Which peninsula contains Greece, Albania and much of the former Yugoslavia?

The Balkan Peninsula contains Greece, Albania, and much of the former Yugoslavia.

The Balkans occupy southeastern Europe, though their exact northern boundary is debated. Common definitions use the Danube, Sava, and Kupa rivers, while broader definitions include parts of Romania, Slovenia, and Croatia. The peninsula is surrounded by the Adriatic, Ionian, Aegean, Marmara, and Black seas.

Countries wholly or partly within the region include Greece, Albania, Bulgaria, North Macedonia, Serbia, Montenegro, Bosnia and Herzegovina, Kosovo, Croatia, Slovenia, Romania, and European Turkey. The region’s name comes from the Balkan Mountains in Bulgaria.

The Balkans have been a crossroads of Roman, Byzantine, Ottoman, and Austro-Hungarian influence. Because the geographic boundary is not universally fixed, “Balkans” and “Balkan Peninsula” are sometimes used with slightly different country lists.