Croatia (Croatian: Hrvatska), officially the Republic of Croatia (Republika Hrvatska), is a southern Central European country at the crossroads between the Pannonian Plain and the Mediterranean Sea. Its capital is Zagreb. Croatia borders with Slovenia and Hungary to the north, Serbia to the northeast, Bosnia and Herzegovina to the east, and Montenegro to the far southeast. Its southern and western flanks border the Adriatic Sea, and it also shares a sea border with Italy in the Gulf of Trieste.
Croatia is a member of United Nations, the Organization for Security and Co-operation in Europe and the Council of Europe. The country is also a candidate for membership of the European Union and received a NATO membership invitation on 3 April 2008. Croatia is expected to formally join the 26-nation pact in April 2008 on NATO's 60th birthday, making it the second former Yugoslav nation to join NATO following Slovenia which entered in 2004. On October 17, 2007 Croatia became a non-permanent member of the United Nations Security Council for the 2008-2009 term. Additionally, Croatia is also a founding member of the Mediterranean Union upon its establishment on July 13, 2008.