While the world of Islam has entered into the modern world in the form of national states, continuous attempts are made to create closer cooperation within the Islamic world as a whole and to bring about greater unity. This is seen not only in the meetings of the Muslim heads of state and the establishment of the OIC (Organization of Islamic Countries) with its own secretariat, but also in the creation of institutions dealing with the whole of the Islamic world. Among the most important of these is the Muslim World League (Rabitat al-alam al-Islami ) with its headquarters in Makkah. Saudi Arabia has in fact played a pivotal role in the creation and maintenance of such organizations.