Long having viewed the settlement of Assyrians and Armenians in the country as the product of French colonialism, they were further incensed by the arrival of additional Assyrian refugees on the Khabur, and mobilized support from many Arab tribes and some Kurdish groups to counter the autonomists. The French forcibly cracked down on both sides as they grew increasingly violent, and the movement for autonomy soon failed. Later on, in 1957, the Assyrian Democratic Organization was set up in Syria by center-left intellectuals.[15]