This wolf-like breed has a wild, challenging temperament requiring an experienced owner.

Originally from Turkey, the Kangal is a guardian dog with a commanding presence.

This robust mountain dog has strong protective instincts and can be difficult to control.

With powerful jaws and an intimidating look, Rottweilers make ideal guard dogs.

Known for being fearless and alert, Dobermans have a reputation as aggressive dogs.

As a muscular Italian mastiff breed, the Cane Corso needs extensive training and socialization.

Bred to guard livestock, the Presa Canario has an imposing stature and strong prey drive.