Imam Mahdi (pbuh) is the one who provides an environment for Jesus Messiah. Jesus Messiah comes as a guest, so he would not have such an active task. He would be very influential in the foreign policy of the world; together with his students, he would be influential on people like Putin and Prince Charles of England. But he would have such a significant influence. That is because Jesus Messiah cannot make himself apparent, but that is not the case with Mahdi (pbuh). - Harun Yahya