The demarcation between Croatia and Bosnia and Herzegovina in the Una region from the 17th to the 20th century according to original cartographic material

The article presents the latest scientific research results regarding the presentation of what are nowadays Croatia and Bosnia and Herzegovina territories on geographic maps from the 17th to the 20th century. The focus is set on twenty maps that point to the most important tendencies. Particular attention is paid to wars and international treaties which regulated the demarcation of Una watercourse up to its confluence to the Sava as a centuries-old border between the Habsburg and the Ottoman empires.