While the Japanese war cabinet argued about whether to surrender, and on what terms, the U.S. Army Strategic Air Force on Guam and Tinian geared up for a thousand-plane raid upon the Empire. It would be the last air raid of the Second World War. This little book, which first appeared in Air & Space / Smithsonian magazine on the 50th anniversary of the war's end, tells the story of those momentous forty-eight hours. Revised and expanded for e-book publication, including: a portfolio of photographs and a history of the B-29 project. About 7000 words.