A "fighting dog" refers to a dog that has been bred or trained for the purpose of engaging in dog fighting, a controversial and illegal activity in many places. These dogs are often selected for their strength, agility, and temperament, making them suitable for competitive matches against other dogs. Breeds commonly associated with fighting include Pit Bull Terriers, Rottweilers, and American Staffordshire Terriers. Dog fighting is a brutal sport that involves two dogs being placed in a pit to fight until one is unable to continue. This practice is condemned by animal welfare organizations, as it causes severe injuries and suffering to the animals involved. Many countries have laws prohibiting dog fighting and promoting the humane treatment of all animals.