Rottweilers From Orginally. According to the american kennel club (akc), the rottweiler ranks as america’s 8th most popular breed. Today they work in security and herding.

They are also among the earliest police dogs, as well as serve with honor in military missions. It is thought that if not for these early rottweilers, the romans would never have survived the journey. Rottweilers are often used as working dogs, such as police dogs, search and rescue dogs, and therapy dogs.