When your two friends are at cross roads, What do you do?

When two of my friends were bitter toward each other (for a dispute I was unclear about), I was often torn in two directions. They both sort of dragged me toward their directions. They never called me disloyal or unfair when I had to pick a side, but I sensed hostility. You see, neither of them ever really got one up on the other, so I was the one who truly suffered for it. What I did to try regrow their ties was to tell them my own trouble with this affair, and I also encouraged them, in a friendly way, to get back into each others good terms. I should say this affair took about 10 months. Finally it cooled down. It just sort of stopped. They didn't insult each other anymore or flare up when they were near each other. They spoke in normal conversation. I don't have too much insight on this incident; I guess the only thing to do is to refrain from taking any sides, and slowly regrow their ties with them. It's like the Earth; when you take an approach that seems to be miraculous and convenient to solving an environmental problem, it gets much worse nearly all the time. Hope I was helpful!