Bosnia (region)
Bosnia (/Босна; ) is the northern region of Bosnia and Herzegovina, encompassing roughly 81% of the country; the other eponymous region, the southern part, is Herzegovina. "Bosnia" is an informal term for the whole country.
Croatian diaspora
Croats form one of the three constitutient nations in Bosnia and Herzegovina. They are frequently referred to as Bosnian Croats, but since the War in Bosnia and Herzegovina the number of Herzegovinian Croats exceeds the number in Bosnia. The Croats maintain an unofficial capital in Mostar, with the city being home to the largest Croatian population.