Albania is a country in southeastern Europe that lies on the Adriatic and Ionian coasts of the Balkan Peninsula. It shares land borders with Montenegro, Kosovo, North Macedonia, and Greece.
Bosnia and Herzegovina is a country in southeastern Europe that occupies the central and eastern parts of the Balkan Peninsula. It borders Croatia, Serbia, and Montenegro, and has a narrow coastline on the Adriatic Sea.
Bulgaria is a country in southeastern Europe that occupies the eastern part of the Balkan Peninsula. It borders Romania, Serbia, North Macedonia, Greece, and Turkey, and has a coastline on the Black Sea. The Balkan Mountains, which give the region its name, extend throughout the whole of Bulgaria.
Croatia is a country in southeastern Europe that occupies the western and northern parts of the Balkan Peninsula. It borders Slovenia, Hungary, Serbia, Bosnia and Herzegovina, and Montenegro, and has a long coastline on the Adriatic Sea. The Dinaric Alps, part of the Balkan mountain system, run along its western edge.
Greece is a country in southeastern Europe that occupies the southern part of the Balkan Peninsula. It borders Albania, North Macedonia, Bulgaria, and Turkey, and has a coastline on the Ionian, Aegean, and Mediterranean seas. The Pindus Mountains, part of the Balkan mountain system, run through its mainland.