What is the main source of the Sunni and the Shiite conflict?

This was also mentioned, at least, in part in the preamble. Although there are some settled minor differences between the two main branches of Islam, such divergences are not as broad as those that exist between Catholicism, Protestantism and Russian Orthodoxy in Christianity or to the extent the west wishes to portray it. Both Sunnis and Shiites believe in the same almighty universal God and his “last” holy Book the Qur’an, adhere to the same essential daily rituals, prayers and codes of conduct, and follow through the same set of religious expectations and traditions. The difference is deciphered in the political aspects of its interpretations, although if one speaks with a conservative fundamentalist from either side, he would demand that you agree that his side is the righteous one and the other side has deviated from the “truth”, and could therefore be labeled as blasphemous. In Iran, Shiisim which has existed in a mild manner since the late first millennium became intertwined ...  more