The Caucasian Mountain Dog was developed in medieval Russia for guarding livestock. It is a powerful, robust breed, popular at Russian dog shows. Its temperament remains cautious with strangers & difficult to obedience train. It is not recommended with children nor other dogs, nor in urban spaces. The thick, dense coat provides good protection against cold weather.
This is Tibetan Mastiff They can grow up to 32 inches... He's considered a primitive breed. It typically retains the hardiness which would be required for it to survive in Tibet and the high-altitude Himalayan range, including the northern part of Nepal, India and Bhutan.