“Water is the most valuable resource in the world.” That is a line from a 007 James Bond movie but right now around the world, battles are raging over water resources. In China, some 1,000 lakes have disappeared in the last five decades. In Russia, the Aral Sea, once the world’s fourth largest lake, is disappearing. Japan cannot be indifferent to these developments as an increasing number of Chinese and other foreign companies are purchasing forests in Japan for their water resources. Japan should address water issues as a national policy priority.