The Japanese Spitz (日本スピッツ, Nihon Supittsu) is a small to medium breed of dog, mainly used as a companion dog (although they can be used as a watchdog). Standards (requirements) usually vary across the world for these dogs. Developed in Japan during the 1920s and 30s, they were bred by breeding some Spitz type dog breeds. The breed is recognized by most kennel clubs except the AKC. It is a new breed, however is growing in popularity due to their good temperament (behaviour).
These dogs are generally known for being smart, easy to train, and good with children. Generally, they can be protective of their owner(s), hence why they can be good watchdogs. They can bark if people they don't know enter their territory.