Dog fighting is illegal. Anyone who would use a pet, friend and loved one for fighting out to be used the same way themselves! As for the dogs in your pictures, strange part mastiff? I have not seen dogs from your part of the world. Dogs should never be chained. They need a fenced yard. Sorry if I sound blunt or out of place, but it's a touchy subject for a lot of us in the US. We see dogs as part of our family, like our own children. I put up with a lot more out of our dogs than I ever did my kids while they were growing up! My dogs live in air conditioning, sleep in our bed, get fresh water many times a day, eat the best dog food I can buy, dog toys, treats, have constant attention at our side and better health care than me. Their life is to short to not fully enjoy them. After all, we chose them and the responsibility of dog ownership. If we can not or will not take the good and the bad of that choice we have no business with a dog.
(climbs off soap box and hides face for a month)