Croatia (Republika Hrvatska) is a parliamentary republic in the Balkan peninsula, it confines to the north-west with Slovenia, to the north with Hungary, to the east with Serbia, to the south with Bosnia and Herzegovina and Montenegro, to the west is the Adriatic Sea. Between the cities beyond the state capital Zagreb, are important the cities of Split (Spalato), Rijeka-Fiume, Pula-Pola, Dubrovnik (Ragusa), Osijek, Karlovac, Sisak.

Croatia extends from the extreme eastern margins of the Alps to the north-west, until the plain of Pannonia and to the rivers of Danube to east, while its central part is occupied from the mountain chain of the Dinara (1.831 meters) and its southern part, instead, finishes on the coast of the Adriatic Sea where there are 1,185 islands, of which only 50 inhabitated. The main rivers of Croatia are the Drava and Sava.