Ключевые слова: aggression, animal, animal themes, animal trainer, attack, behavior, bite, biting, canine, clothing, command, d9, defense, dog, dog shelf, equipment, five, german shepherd, german shepherd dog, guard, guard dog, handler, helper, instructor, jump, leash, man, military, muzzle, obedience, obedience training, outdoors, people, person, protection, protective, protective clothing, purebred, running, security, service, shelf, shepherd, sleeve, trained dog, training, work,