Hazem's major international work in theatre was connected to his significant involvement with the International Federation for Theatre Research (IFTR), the most important international organization of theatre scholars. In this organization, Hazem became one of the best-known and most respected younger members. He began regularly attending IFTR in 2005 and the following year he and I, along with Khalid Amine from Morocco, gathered the required fifty signatures from members of the organization to establish an ongoing working group dedicated to research in the theatre of the Arab/Islamic world. The Arabic Theatre Working Group was officially established by the organization in 2007 and Hazem served as co-convener of the group from that time onward. As such he was responsible for much of the organization and energy of the group, which became one of the most active in the organization, producing a variety of books and publications, regularly organizing major panels for the plenary sessions of the annual conventions, and establishing an online journal, Arab Stages, which appears twice a year and offers essays, interviews and translations from the Arab world and the Arab diaspora.