Doolittle Raid

April 18, 1942: the Doolittle Raid about to launch from USS Hornet.

The Doolittle Raid was a surprise attack by air on Tokyo and other locations on Honshu Island during World War II. It was named after James Doolittle.

## Background[edit]

As a result of this attack, which caused the Japanese to want to extend their first line of defense as far east as possible, the Japanese advanced the date of their planned attack on Midway. On May 5, Imperial General Headquarters issued "Navy Order No. 18" directing Admiral Yamamoto to carry out the occupation of Midway Island and key points in the western Aleutians in cooperation with the Army.

At the same time, Japanese Navy communication activity in the vicinity of Japan dramatically increased, reflecting naval exercises conducted in preparation for both the Midway and Aleutian operations. On May 7, Hypo provided a translation of the agenda for a Japanese aviation conference, called by Commander in Chief, 1st Air Fleet (Vice Admiral Nagumo), scheduled for May 16. The conference concerned tactics to be employed in obtaining air superiority over a target, assisting in amphibious landings, and bombing and strafing attacks to wipe out local resistance. On May 9 Melbourne intercepted and translated "1st Air Fleet Striking Force Order No. 6," which confirmed the creation of a new carrier strike force and that a major Fleet movement would begin on May 21. In response to this COMINT, American cryptanalysts supplied warning notices of Japanese offensives scheduled for late May.