Shiite and Sunni

Any true Shiite knows that only the heirs of the fourth caliph, Ali, are the legitimate successors of Mohammed. The Sunni believe that the first four caliphs - Mohammed's successors - rightfully took his place as the leaders of Muslims and they recognize the heirs of the four caliphs as legitimate religious leaders. We have not lived under the authority of a legitimate religious figure since the Twelfth Imam disappeared in 931. The tension between the Sunni and the Shiite in has grown over the years and it is only due to the diplomatic corps that nothing has happened, yet.