Herzegovina
Herzegovina ( or ; Serbo-Croatian: "Hercegovina", Херцеговина, ) is the southern region of Bosnia and Herzegovina. While there is no official border distinguishing it from the Bosnian geographical region, it is sometimes asserted that the borders of the region are Dalmatia to the southwest, Montenegro to the east, Mount Maglić to the northeast, and Mount Ivan to the north. Measurements of the area range from , or around 22% of the total area of the present-day country, to , around 24% of the country.
Herzegovina
In 1918, Herzegovina became a part of the newly formed Kingdom of Serbs, Croats and Slovenes (later renamed Kingdom of Yugoslavia). In 1941 Herzegovina fell once again under the rule of the fascist Independent State of Croatia. During World War II, Herzegovina was a battleground between fascist Croat Ustaše, royalist Serb Četniks, and the communist Yugoslav Partisans; Herzegovina was a part of the Independent State of Croatia, administratively divided into the counties of Hum and Dubrava, then in 1945, PR Bosnia and Herzegovina became one of the republics of Second Yugoslavia. It remained so until the breakup of Yugoslavia in the early 1990s.