The Karakachan is an ancient Bulgarian livestock guardian dog — one of Europe’s oldest guardian breeds — developed over thousands of years by the nomadic Karakachan shepherds of the Balkan Peninsula to protect sheep, goat, and cattle herds from wolves, bears, and jackals in the mountains of Bulgaria, Serbia, and North Macedonia. The breed was officially recognized as Bulgaria’s national native breed in 2005. Fewer than 200 Karakachan dogs serve as working livestock guardians in the United States, making it among the rarest working guardian breeds in the country.