Morony, Michael G. Iraq after the Muslim Conquest, Princeton, 1984
Dekker played his last match on 10 March 1985, and became a football manager, who coached Fortuna Sittard, FC Eindhoven, Al-Jazira (United Arab Emirates), FC Den Bosch, Qatar (– 17), RBC Roosendaal, Sparta Rotterdam and Fortuna Sittard once again.
:The Assyrians immigration in the High Jazira (...) goes on and is supported by the Mandate Power as it facilitates a secret but even more visible tendency: that of the creation of a new autonomous State, in spite of the theoretical discussions on the unity of the mandate.
Faced with this crisis, the Caliph Hisham ibn Abd al-Malik (r. 723–743) took drastic measures: Khurasan was separated from the purview of the governor of Iraq and raised to a separate province, under the Jaziran general Ashras ibn Abdallah al-Sulami.
Pact of Umar, a treaty signed between the Muslims and Christians in Syria or al-Jazira during the time of Caliph Umar
Jabhat al-Akrad operates in Kurdish and ethnically-mixed areas in Syria's Aleppo and Raqqa provinces, mainly outside of the quasi-autonomous Kurdish enclaves in Kurd Dagh, Jazira, and the Ayn al-Arab (Kobanê) area which are controlled by the YPG.
They concentrated in the Jazira region and built a number of villages on the banks of the Khabur River.