We have a unfixed at present 8 month old American Bulldog that was at our house first and was used to being around other dogs until one got pregnant and they fought and had to be separated and that is how we got her. She has been around other male dogs and is friendly and never aggressive. However we just adopted a 2 year old fixed English Bulldog and they are constantly fighting. We have them separated but would like to have them together. They will back down once scolded but are very aggressive toward each other and do constant stare downs to establish dominance. Any ideas on how to get these two beautiful dogs to get along? We don't want to adopt out either but might have no choice as we do not want to see either get hurt. Please advise.