2. Rottweiler

Rottweilers came from Germany and were dominantly used to pull carts filled with meat, as well as for herding farm animals. Although it is proven that Rottweilers have an unbelievably strong bite, they aren’t actually attack dogs. They are fiercely loyal, and will do anything to protect their loved ones, but unless trained to do so, they don’t charge unless provoked. Again it must be noted that, if raised in a happy and loving environment, then these dogs will behave the same way.

3. German Shepherd

Commonly used by the Police and other authorities as police dogs, guide dogs, service dogs, search-and-rescue dogs and the like, due to their amazing loyalty and courage. Not only are they highly trainable, they are intelligent and tenacious as well. These highly brilliant animals require a lot of socialization and training, but they can also manage to show aggression and fierceness when not disciplined properly. They have a force bite of up to 238 pounds, proving that there is a reason why they are the choice of the K9 Police Force.