Guard dogs are a breed of dog with excellent protection capabilities. They are usually large, powerful, brave and loyal. The following are some common guard dog breeds:

German Shepherd: Intelligent, flexible and easy to train, it is widely used in fields such as police dogs, military dogs, search and rescue dogs and guard dogs.

Rottweiler: Strong and powerful, it is a natural guard dog. It is extremely loyal to its owner and wary of strangers.

Doberman Pinscher: elegant in appearance, smooth lines, extremely intelligent and alert, and able to quickly detect potential dangers .

Tibetan Mastiff: Originating from the Tibetan region of China, it is huge, powerful, loyal to its owner and brave, making it an excellent family guard dog.

The Cane Corso: Compact, muscular, stable and loyal, it is often used as a guard dog and hunting dog.

Caucasian Dog: One of the largest dog breeds in the world, it has great strength and courage, is extremely loyal to its family, and is an excellent family guard dog.