Dont think -american-is included in this dogs breed name
Its a staffordshire bull terrier(from england)
Yup, and there is a pretty big difference between them and an APBT. The American Staffordshire Terrier is much closer related to the APBT and in some cases are even dual registered as both. SBT's can be really tiny but so can a APBT's sometimes but not as much on average. They all are related as JP already said. I really like SBT's as pets they are some pretty cool little dogs.