Dogs starting to Fight?

Had the same thing happen with two females along time ago. I didn't have any luck with being able to pen them together again but I was able to get them to stop fighting when I was around. So I could take them out together as long as I was there but I could not leave them alone for extended periods of time. It took a lot of work and time with them, and me giving them a little "love" every time they even started to think about getting into it. What it came down to was I established myself as the leader and when I was around they knew I made the rules with no exceptions.

But some dogs will be a lot easier to do this with than others, so I wish you good luck. I'm sure you will get it handled one way or the other.