A recent report published by The Soufan Center — a Washington-based security intelligence consultancy group— warned of possible terrorist attacks in Europe and elsewhere, in the wake of the return, from Syria and Iraq, of at least 5,600 citizens or residents from 33 different countries, accounting for about 15 percent of the militants.

The report entitled, “Beyond the Caliphate: Foreign Fighters and the Threat of Returnees,” released this week by the Center, said that the return of militants represented a tremendous challenge to the security bodies in the respective countries, pointing out that more than 40 thousand foreigners have joined ISIS before and after the announcement of the formation of the alleged ‘Caliphate’ in June 2014, and that some of them would remain committed to “violent jihad”, as called for by ISIS and al-Qaeda …