This is a pioneering study about the relationship between fresh water, peace, and security in Asia from the Middle East to Siberia but with a special focus on South and Southeast Asia. Asia is home to many of the world's great rivers and lakes, but its huge population and booming economies make it the most water-scarce continent on a per capita basis. Over extensive irrigation, pollution, and global warming add to the demographic and economic pressures on Asia's fresh water supplies. The location of the sources for much of South and Southeast Asia's fresh water is in the Chinese controlled Tibetan Plateau, and China's increasing exploitation of these water sources have created growing geopolitical tensions that could boil over into conflict. India is reliant on fresh water from Tibet, which gives the Chinese uncomfortable leverage over India and further exacerbates their unsettled border disputes. Vietnam, Bangladesh, Pakistan, and other countries of the region also find themselves in similarly vulnerable positions where water is scarce and the sources are increasingly being exploited and polluted upstream by the continent's most powerful country. Brahma Chellaney proposes strategies to avoid conflict and more equitably share and preserve Asia's water resources.