Staffies, or Staffordshire bull terriers, aren't very tall, but what they lack in height they make up for in solid muscle.
Bullmastiffs were first bred by English gamekeepers to protect against poachers. They are strong dogs that are dedicated to their work.
Ancient Japanese bloodlines show that Akitas are smart, dominant, and brave. They tend to be aggressive toward other dogs, so they do best in homes with only one dog.
The Chesapeake Bay retriever is known for having a coat that doesn't get wet and for being friendly and happy.
The cane Corso is the perfect example of the stereotypical bodyguard: tall, serious, and just a little bit scary. This breed is great for guard dogs because they are strong and smart.
Doberman pinschers are smart, loyal, and easy to train, so they often work for the police and the military. The breed's pointy ears and sharp noses make these dogs seem scary.
Like boxers in the ring, these dogs are big and strong, but also quick and graceful. Boxers are smart and like to have fun, but they need a lot of physical and mental challenges to be happy.
Even though they are called "Australian shepherds," they are actually an American breed. The best thing for these dogs is to keep them busy and give them a job to do.
Rottweilers are happiest when they have something to do. This breed can be a police dog, a therapy dog, a farm herder, or a traditional family guard dog.
German shepherds are known for being strong, smart, and naturally brave. They are often thought of as the perfect guard dog