10 Strongest American Dog Breeds - Don't Mess With These Pups

10 Strongest American Dog Breeds - Don't Mess With These Pups There are plenty of dogs in America, but there are also plenty of strong ones. Take the German Shepherd, as an example; this breed can have a bite force of up to 740 pounds per square inch (psi), which is nearly twice that of the bite force of! This same breed has been used by law enforcement and the military to protect humans, so it's not surprising that it's considered one of the strongest dog breeds in America today. 1) Bullmastiff The bullmastiff is a powerful and large dog. It is used for guarding and territorial defense. The Bullmastiff's size, build, and mannerisms resemble those of a bear. The Bullmastiff must be very well trained to do well with children, but in general they are good-natured dogs that can adapt to almost any household situation. Most bullmastiffs have few serious health issues and an average lifespan of 8–12 years. 2) Rhodesian Ridgeback A sturdy dog with a harsh, wir...