insula of the Balkans is the peninsula that ends Europe in the eastern part of the Mediterranean and faces Italy on one side and ANATOLIA on the other (Asian Turkey).Its area is about 400 000 km². It was formerly known as European Turkey and today corresponds to mainland Greece, Albania, Bulgaria, a small part of Romania, the States born of the break-up of the ancient Yugoslavia (Slovenia, Croatia, Bosnia and Herzegovina, Montenegro, Macedonia, Serbia and KOSOVO); the name of European Turkey applying only to Eastern ThraceThe Balkan Peninsula offers a certain analogy with the IBERIAN Peninsula. They are the same granitic chains diversely oriented, connected by tertiary flaps. Three major geological regions are delimited by the three main mountainous directions. The first one, almost parallel to the Adriatic, has its origin in the Austrian Alps in Croatia, it runs to the South under the name of chain Char and mountains of Pinde it then passes in Greece. In the center, another chain has its origin in the Banat, in the south-west of Romania, crosses Serbia forming a very naked DONKEY and continues to the South-East, under the names of Rhodope Mountains until Tekir Dagh; it is a kind of large plateau or crystalline central mass.Thanks for the QUESTION.