Premise: Bosnia and Herzegovina ( [ ˈbɒzniə_ənd_ˌhɛərtsəɡoʊˈviːnə , _ - ˌhɜːrt - , _ - ɡə - ] or [ ˌhɜːrtsəˈɡɒvᵻnə ] B&H ; Bosnian , Croatian , Serbian : Bosna i Hercegovina / Боснa и Херцеговина [ bôsna i xěrt͡seɡoʋina ] ) , sometimes called Bosnia-Herzegovina ( BiH ) , and , in short , often known informally as Bosnia , is a country in Southeastern Europe located on the Balkan Peninsula . Bordered by Croatia to the north , west , and south ; Serbia to the east ; Montenegro to the southeast ; and the Adriatic Sea to the south , with a coastline about 20 km long surrounding the city of Neum .
Hypothesis: Bosnia and Herzegovina is an island.
Label: CONTRADICTION