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.
West Herzegovina Canton
The Yugoslav Partisans formed the People's Republic of Bosnia and Herzegovina (later renamed to Socialist Republic), as a federal unit of Yugoslavia, of which the territory of the West Herzegovina Canton become part as well. However, in the process of the collapse of the communist regime, ethnic Croats formed the Croatian Community of Herzeg-Bosnia, which encompassed all Croat-majority municipalities in Bosnia and Herzegovina, including those of the West Herzegovina Canton.