bicommunal

:  involving or including two distinct communities of people :  of, relating to, or being a society composed of two distinct or separate communities often with conflicting interests In the Canadian federation, there is a strong bicommunal element, given the fundamental English-speaking and French-speaking division. — Ronald L. Watts, Autonomy and Ethnicity: Negotiating Competing Claims in Multi-ethnic States, 2000 In any case, neither the EU nor any supranational structure would possess any innate advantage in attempts to resolve bicommunal disputes such as that in Northern Ireland. — Derek W. Urwin, Regions and Regionalism in Europe, 2004 Perhaps most importantly, Rwanda can be described as a bicommunal society. This term refers to a society where over 80 percent of the population belongs to one of two well-defined identity groups. Also, the two groups in Rwanda are not in balance. Bicommunal societies are marked by social differentiation and segregation, which often results in political separation or conflict. — John James Quinn et al., Ethnic Conflict and International Politics, 2004