“On the afternoon of 6 December 1941, Tai Sing Loo, the colorful Pearl Harbor Navy Yard photographer, arranged with Platoon Sergeant Charles R. Christenot, the noncommissioned-officer-in-charge of the Main Gate at the Navy Yard, to have his Marines pose for a photograph between 0830 and 0930 Sunday morning, in front of the new concrete main gate. The photo was to be for a Christmas card....Unbeknownst to Admiral Kimmel, a Japanese task force under the command of Vice Admiral Chuichi Nagumo, formed around six carriers and the most powerful force of its kind ever assembled by any naval power, had set out from the remote Kurile Islands on 27 November. It observed radio silence and steamed via the comparatively less traveled northern Pacific.

Nagumo’s mission was to destroy the United States Pacific Fleet and thus ensure its being unable to threaten the Japanese Southern Operation poised to attack American, British, and Dutch possessions in the Far East. All of the warning signs made available to Admiral Kimmel and General Short pointed toward hostilities occurring within the forseeable future, but not on Oahu. War, however, was about to burst upon the Marines at Pearl Harbor “like a thunderclap from a clear sky.”