Usually upstream countries dominate control of a river, like the Tigris and Euphrates, which are much reduced by the time they flow into Iraq from Turkey and Syria.

通常情况下，上游国家主宰着河流的控制权，像底格里斯河和幼发拉底河，当从土耳其和叙利亚流入伊拉克时流量就减小了很多。