Tosa

Tosa

Japan
The Tosa (Tosa Inu or Japanese Mastiff) is a large molossoid from Japan, created on the island of Shikoku as a fighting dog and used today as a guard. The FCI standard describes his temperament as patient, calm, bold and courageous. The AKC says it is normally quiet and obedient, quietly affectionate with family, but aloof with strangers and wary of other dogs.

More about the breed on WikiAnimals