Then she's territorial, not dog aggressive. What I would do is to introduce the dogs at a neutral place, somewhere your dog hasn't been before. If she acts good, then let them play and get to know each other. I would then introduce on a walk in your neighborhood, and walk them to your house. If she does good in the yard, move on to the house. I doubt a basic training lesson will help very much, although if you can get her to come at your command no matter what, I would say that you'd have a better chance of her not fighting a dog.shes ok if shes at a dog park but if shes at the house she a brat so i dont know but im hoping the training lession i get monday for her to learn sit stay lay down and come will help some with it but theres a place that trains dogs thats aggressive to people and/or dogs but thats lot of money anyways she ok with cats and chickens just not big dogs but lets hope for the best right?