Bosnia and Herzegovina, sometimes known as Bosnia-Herzegovina and informally as Bosnia, is a country in Southeast Europe. Situated on the Balkan Peninsula, it borders Serbia to the east, Montenegro to the southeast, and Croatia to the north and southwest, with a 20-kilometre-long coast on the Adriatic Sea in the south. Bosnia has a moderate c…Bosnia and Herzegovina, sometimes known as Bosnia-Herzegovina and informally as Bosnia, is a country in Southeast Europe. Situated on the Balkan Peninsula, it borders Serbia to the east, Montenegro to the southeast, and Croatia to the north and southwest, with a 20-kilometre-long coast on the Adriatic Sea in the south. Bosnia has a moderate continental climate with hot summers and cold, snowy winters. Its geography is largely mountainous, particularly in the central and eastern regions, which are dominated by the Dinaric Alps. Herzegovina, the smaller, southern region, has a Mediterranean climate and is mostly mountainous. Sarajevo is the capital and the largest city.