1. Diwanu’I Jund The great Diwan of Umar I (Rad.A), distorted and disfigured by the early Umayyads, but reformed and rectified by Hisham, was continued under the Abbasids. All soldiers irrespective of their
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nationalities were given stipends and allowances, but, retaining the very useful reform of Hisham, for whom al-Mansur had great admiration, no one, who did not take part in any war. was paid any annuity. This Diwan was responsible for the recruitment and pay of the troops. Actually, the Caliph or his Wazir looked after these matters which were among the most important in the state.
