In the world of diversities, Bosnia is probably at the top with the phenomenon of being country with three nations (all of which are so similar they share the same language!) evolved with four religions and all in land that covers not more then average state in US. However, these three are always within the reach of war due to conceptual understanding of belonging to some "greater nation", greater good or simply territorial purposes.
Having that said, there's always a story that emerges from all that darkness and disbelief, so I do have a couple of stories that could cover your project, maybe evolve them all in one single puzzle. All I can say it involves people of different backgrounds, religion and ethnicity that basically do their best to survive in this cruel world.
Wanna know more? Do not hesitate to reach me here or via mail.
God bless...
Adel