Page "Isoroku Yamamoto's sleeping giant quote" Paragraph 2

The line serves as a dramatic ending to the depiction of the attack, but it has yet to be verified that Yamamoto ever said this ( although it may well have encapsulated many of his real feelings about the attack ).

Neither At Dawn We Slept, the definitive history of the Pearl Harbor attack by Gordon Prange, nor The Reluctant Admiral, the definitive biography of Yamamoto in English by Hiroyuki Agawa, contains the line.