Colin P. Clarke is the director of research at The Soufan Group and the author of After the Caliphate: The Islamic State and the Future Terrorist Diaspora.

have long nursed an ambition to have their monarch designated Caliph of all Islam, spiritual head of all Moslems. That job has been vacant since 1924 when the last Caliph, Turkey’s Abdul Medjid ...

the last Abbasid. Mr Ameer Ali, however, tells us that the Caliph is no more than an accepted representative of Islam who is charged to preserve the atmosphere of the Holy Places uncontaminated and to ...

The Iraqi Prime Minister said that personnel of the country's national intelligence service, working with coalition forces ...

US Central Command carried out an airstrike that killed Abdallah Makki Muslih al Rifai, also known as Abu Khadijah. Rifai was ...

A television series about the life of the Umayyad caliph, Muawiya, titled "Mo'awey," which was banned in Iraq due to the ...

Rifai, or “Abu Khadija,” was “deputy caliph” of the militant group and as “one of the most dangerous terrorists in Iraq and ...