Serbia officially the Republic of Serbia is a country situated at the crossroads of Central and Southeast Europe in the southern Pannonian Plain and the central Balkans. It borders Hungary to the north, Romania to the northeast, Bulgaria to the southeast, North Macedonia to the south, Croatia and Bosnia and Herzegovina to the west, and Montenegro to the southwest. The country claims a border with Albania through the disputed territory of Kosovo. Serbia's population numbers approximately seven million. Its capital, Belgrade, ranks among the longest inhabited and largest cities in southeastern Europe. It was a part of Yugoslavia along with Bosnia and Herzegovina, Croatia, Montenegro, Slovenia, and North Macedonia.