Original sentence: In northern Mesopotamia, northern Syria and south east Turkey the Ottomans held the armed support of the Kurds, Turcomans, Circassians and some Arab groups, while the British and Russians were militarily supported by the Assyrians and Armenians (particularly in the wake of the Armenian genocide and Assyrian genocide), and some Arab groups
Edited sentence: In northern Mesopotamia, northern Syria and south east Turkey the Ottomans held the armed support of the Kurds, Turcomans, Circassians and some Arab groups, while the British and Russians were militarily supported by the Assyrians and Armenians (one of the factors in Armenian genocide and Assyrian genocide), and some Arab groups