#1 German Shepherd

German Shepherds are commonly chosen as police dogs for a reason. They are athletic, highly trainable, and incredibly clever canines. They are strong opponents to intruders due to their medium-to-large size and above-average strength. These dogs have powerful jaws as well and they can break bones with only one bite. Unsurprisingly, a hostile German Shepherd might be very dangerous.

German Shepherds are undoubtedly a favorite breed as a family dog too, and with the appropriate training, they can be a fantastic companion for your family. Making sure your dog is appropriately socialized from an early age is the key. In this manner, he will know that guests are pals rather than intruders.