American Akita Inu - The Akita is a large spitz breed of dog originating from the mountainous northern regions of Japan - File:American-akita.jpg - Wikipedia, the free encyclopedia
Even a young Neapolitan Mastiff (Neo) knows how to guard. I really love Neapolitan Mastiff wonderful dogs.
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good to know if you need a guard dog! Although I would add the breeds: Mastiff & Pitbull to the list. Both are lovable, & loyal protectors.
Train a Guard Dog - wikiHow