Slovenia, officially the Republic of Slovenia, is a nation state in southern Central Europe at the crossroads of main European cultural and trade routes. It borders Italy to the west, Austria to the north, Croatia to the south and southeast, and Hungary to the northeast. It covers 20,273 square kilometers (7,827 sq mi) and has a population of 2.05 million. It is a parliamentary republic and a member of the European Union and NATO. Its capital and largest city is Ljubljana.