The United States and India have a new science and technology agreement for cooperation in four areas of research, one of which is moonsoon prediction. The Indian monsoon and the prediction of monsoon rainfall on short time scales is of vital concern to India and is also a central element of the global atmospheric circulation. Its predictability depends not only upon its own dynamics but also upon the dynamics of the global circulation in which it is embedded. An understanding of monsoon dynamics is central to an understanding of the global circulation. Thus an improved knowledge of the interannual variability of the Asian monsoon should improve long-range weather prediction throughout the world. It is therefore of vital scientific and practical importance to both the United States and India.