#CaneCorso The Cane Corso, or Italian Mastiff, is a breed of dog from the Southern regions of Italy and is part of the Mastiff family. The Cane Corso was used by the Romans during war and as guard dogs, though they also made for good herding and working animals. Cane Corso dogs need special training, as they are naturally suspicious about others and always on guard and can be aggressive to strangers, so they require dedicated owners who are able to handle this kind of dog.