TheCodeBreakers
preparation messages behind a cryptographic smoke screen that
American cryptanalysts had almost entirely blown away. And as
solutions of these messages drifted into Nimitz' office in the first weeks of
May, that old sea dog scented a major offensive. Hastily, he recalled
carriers Hornet and Enterprise, which had headed for the Coral Sea after
launching Jimmy Doolittle's raid on Tokyo, and Yorktown, to be ready for
any eventuality. But what eventualities were possible? The Fleet
Intelligence Summary of May 15 warned of an enemy raid or seizure of
Dutch Harbor in the Aleutians some time between May 30 and June 10.
This was almost certainly a diversionary move. But where would the
main Japanese attack fall—and when? There was no clear-cut answer.
Several Japanese strategies appeared possible. Nimitz himself thought
Midway was the target, but in Washington Admiral Ernest J. King, Chief
annaabi.ee 
