The Smyth Report is the common name of an administrative history written by the American physicist Henry DeWolf Smyth about the Manhattan Project, the Allied effort to develop atomic bombs during World War II. The subtitle of the report is A General Account of the Development of Methods of Using Atomic Energy for Military Purposes. It was released to the media on August 11, 1945, and the public on August 12, 1945, just days after the atomic bombings of Hiroshima and Nagasaki on August 6 and 9.