The term CROAT OR SERB can be summed up as a Slavic ethnic group. This group is composed of two distinct subgroups, the Croats and the Serbs. The Croats are a South Slavic ethnic group native to Croatia and Bosnia and Herzegovina, while the Serbs are a South Slavic ethnic group native to Serbia, Montenegro, and Bosnia and Herzegovina. Both groups share a common language, culture, and history. They have been living in the region for centuries and have had a long and complex relationship with each other.