For a while, the American strain of Akita was known in some countries as the Great Japanese Dog. Both forms of Akita are probably best known worldwide from the true story of Hachikō, a loyal Akita who lived in Japan before World War II. As a result, a lot of specimens started to lose their spitz characteristics and instead took on drop ears, straight tails, non-Japanese color (black masks, and any color other than red, white or brindle), and loose skin. A native Japanese breed known as Matagi (hunting dog) was used along with the Hokkaido Inu breed to mix back into the remaining Akita Inu to bring back the spitz phenotype and restore the Akita breed.