A New Army List from John O (Malekithau).
The Hurrians were a people originating in the vicinity of Armenia. They are believed to have introduced the Maryannu system to the Middle East. The Maryannu were essentially chariot born nobility who ruled over their subjects in a very similar manner to the feudal system. The Maryannu were expected to render military service when requested by their king and to provide a contingent of lesser troops. The Maryannu were hereditary land holders who were expected to provide their own equipment and this did mean that the provincial Maryannu were quite often not as well equipped as those located in or close to a major city. The Maryannu system was adopted by many nations throughout the Middle East and Hurrians are believed to have provided the aristocracy in many Syrian cities even after the fall of the Mitanni Empire.
The Mitanni Empire arose on the upper reaches of the Tigris River with their capital located at Washagunni. The empire at its height stretched from Canaan, Anatolia and Assyria, whom they are reported to have reduced to vassalage. Mitanni finally fell after an internal power struggle involving the Hurrians of Hurri Land who allied with the Hittites. The Hittites took advantage of this and invaded in support of a pretender to the throne. The Mitanni were reduced to vassalage.
Thus ended the Mitanni Empire who had rivalled the Hittites, Egyptians and Assyrians. It is possible that remnants of the Hurrians were the founders of Urartu (The Kingdom of Van) who were a constant thorn in the Assyrians sides but that is another list!