not sure if it'll help.. but here's our opinions.. we used to have lotttttsss of trouble with communication. and didn't know anyone in the other groups inside.... first we started working on getting the groups we knew about working together.. and as that got straightened out.. and we figured out how to .. we built like an intercom system so we could talk in spite of the barriers..eventually the barriers fell, we've had to do that several times for different areas as we found out about our houses.. but it's worked..

The division may be linked to the communication problem.. but there are ways around it.. but maybe start small.. improve communication with the ones you know on that side.. and then you have a better foundation for working with/dealing with whomever is on the other side..

-Brighid