dogs fighting

I had a very disturbing revelation recently when I found out someone was camping out underneath my house in the crawlspace for several weeks. I'd really rather not go into details about that, but since then, my two dogs (a mini dachshund and a pitbull) have shown agression towards each other...

I have a question about two dogs getting along. I have a male Pomeranian dog. I moved into my uncles basement. He has a Lab and German Shepard. My dog got along fine with the lab and has gotten along with other big dogs in the past. When we tried to introduce the German Shepard and my dog she...