The German Shepherd was used by the German army as a military dog during the Second World War, the German Shepherd also served as a guard dog, search and rescue dog, guide dog role. The German Shepherd is generally 61-66 centimeters tall at the shoulder, and the female dog is generally 56-61 centimeters tall at the shoulder, and now our country’s public security system police dogs and military dogs, many are imported from Germany German Shepherd.
The Rottweiler is also known as the Rottweiler with a large head. Although medium in size, the Rottweiler is strong and muscular, with a broad head and short hair, the shoulder height of the adult male is 61-68 centimeters and the female is 56-63 centimeters.
The Doberman, also known as the Doberman Pinscher, is a medium-sized breed of dog. Very muscular, the military and police forces at home and abroad have been equipped with this breed of dog.