This essay presents the analysis of conflict history over freshwater in several drainage basins across the planet. As will be demonstrated in this essay, unilateral water policies have proved to reduce the role and prospect of water treaties and international water sharing regimes, and led to political tensions and conflicts. Using the case studies of conflict history in the Aral Sea Basin, the Jordan River Basin, the Ganges-Brahmaputra River system and the Tigris-Euphrates River Basin, the author assesses a conflict potential (...) and underscores that the necessity for sustained basin wide water treaties will increase along with the growing demand for freshwater. The central argument of the essay is that unilateral diversions of water flows will instigate wars between riparian states because of the rising demand for freshwater in the future. (shrink)