Which country had, at various times, included areas known at various times as Bosnia, Herzegovina, Croatia, Macedonia, Montenegro, Slovenia, Serbia, Vojvodina, Kosovo, Istria and Rijeka?
Bosnia and Herzegovina–Croatia relations and Herzegovina and Croatia were engaged in the early-1990s Yugoslav wars, armed conflicts which followed the break-up of SFR Yugoslavia into five sovereign countries: Bosnia and Herzegovina, Croatia, Republic of Macedonia, Slovenia, and FR Yugoslavia (later broken up into Serbia, Montenegro and Kosovo). Croats, Bosniaks and Serbs (including Bosnian Croats and Bosnian Serbs) fought each other exchanging alliances in a series of conflicts. The majority of the wars were fought on Bosnia–Herzegovina territory, where Croats established the Croatian Republic of Herzeg-Bosnia. However, after the wars Bosnia and Herzegovina and Croatia retained the same border they had during SFR Yugoslavia, and
Serbia (Albania 115 km, Bosnia and Herzegovina 302 km, Bulgaria 318 km, Croatia 241 km, Hungary 151 km, Macedonia 221 km, Montenegro 203 km and Romania 476 km). All of Kosovo's border with Albania (115 km), Macedonia (159 km) and Montenegro (79 km) are under control of the Kosovo border police. Serbia treats the 352 km long border between Kosovo and rest of Serbia as an "administrative line"; it is under shared control of Kosovo border police and Serbian police forces, and there are 11 crossing points. The Pannonian Plain covers the northern third of the country (Vojvodina and Mačva) while