[naveensundar]

People with fundamentally different belief systems are not hostile to each other. I have seen people with very radical beliefs who are very accepting of people with opposite views. Almost always it is the politicians and people in charge of nation-states who divide so that they can rule easily (us vs. them mentality). We can achieve harmony and unity through means other than tyranny (http://en.wikipedia.org/wiki/Nonviolence) .