In this enlightening and compelling history of combat from World War II to the Vietnam conflict, author John F. Fuller describes the adventure that was the Air Weather Service and introduces its courageous family of forecasters who provided vital weather support for the nation's armed forces and made notable contributions of the field of meteorology. Learn about the controversial events leading up to the pressure-packed D-Day forecast and the invasion forecasts of Hiroshima and Nagasaki, and discover how weather support "can be the margin between the victor and the vanquished."