It was the cross between the Bulldog and the Terrier that resulted in the Staffordshire Terrier. Breeders desired to perfect a dog that would combine the spirit and agility of the Terrier with the courage and tenacity of the Bulldog. This brave and powerful dog, though very obedient to its master is always willing to fight, making him also suitable as a guard dog. The good qualities of the dog are many and can't be overstressed.