“The Inland Sea of Japan was still veiled in darkness when the anchorage at Hashirajima began to awaken. On board the aircraft carrier Akagi, white-clad crewmen, ghostly in the deep twilight on the forecastle, began raising the ship’s anchors. The clatter of the capstan was overlain with the bright sound of spraying water as the foredeck gang played hoses along the dripping anchor chains, washing them clean of the harbor’s mud. All around Akagi, just barely discernible in the gloom, lay dozens of great grey warships, many of them weighing anchor as well. Nautical twilight was at 0437. But the dark waters of the bay, sheltered by the mountainous islands, would remain shrouded in gray until well after sunlight dappled the hilltops. Akagi would sortie around dawn. The date was 27 May 1942.” - Shattered Sword (Parshall & Tully) 2005, p.3
JAPAN – Citing Japanese victories in the Coral Sea and other battles, Radio Tokyo the previous day announces that “America and Britain… have now been exterminated. The British and American fleets cannot appear on the oceans.”
On board the new battleship, Yamato, a final round of planning and wargaming had wrapped on the 25th, uncovering some potentially fatal flaws with Yamamoto’s plan – namely that there was a gap in the air search pattern south of the Hawaii/Midway axis which would prevent detection of American forces if they sortied to that area. Other officers were concerned that Nagumo’s forces were too far removed from the main body should additional support be required. However, Nagumo and his staff assured Yamamoto that they would be able to handle any such contingency, but another problem had arisen – namely that elements of Kido Butai would not be ready to sail on the established date.
Parshall & Tully note that Yamamoto declined to make changes in the operational schedule, believing that the tides at Midway would not accommodate Nagumo’s tardiness. Kido Butai would sail a day after the rest of the forces (invasion convoy and supporting force) and as such, would have one day less to knock out the island’s defenses for the invading force. No changes were made to the operational plan – no contingency plans put in effect. On the eve of departure for what the IJN leadership viewed to be the deciding battle, the battle that would utterly destroy the American fleet and end America’s presence in the Pacific, thereby securing the Greater East Asia Co-Prosperity Sphere, the planning and wargaming was almost a polar opposite of the tightly scripted, minutely detailed effort that led to the attack at Pearl Harbor.
Around the world, forces were joined and movement was afoot in this truly global war. In Russia, the 2nd Battle of Karkhov was winding to a close. After initial Soviet successes and re-capture of the city, they now found themselves surrounded and an attempted breakout two days earlier had failed. Southward, in the Crimea, the Nazis have begun their summer offensive. In Africa, Rommel has undertaken an offensive against the British defensive positions at Gazala. In Britain, preparations are being made for the first thousand plane raid against Germany – American forces were just beginning to arrive under the command of Eighth Air Force, VIII Bomber Command, but would not see their first combat for another 2 months. In the China-Burma-India theater, 10th Air Force moved B-17′s of the 11th Bombardment Squadron (Heavy), 7th Bombardment Group (Heavy) from Karachi to Lahabad, India with B-17′s. And in the Southwest Pacific Theater, 5th Air Force B-17′s bomb the Japanese stronghold at Rabaul. 8th FG P-39s intercept Japanese fighters attacking Port Moresby, Australia losing two P-39F’s in the process. And at CINCPAC HQ, Ed Layton answers a question from Nimitz – name the dates and dispositions the enemy intends to take up around Midway:
“‘I want you to be specific,’ Nimitz said, fixing me with his cool blue eyes. ‘After all, this is the job I have given you – to be the admiral commanding the Japanese forces, and tell me what is going on.’
It was a tall order, given that so much was speculation rather than hard fact. I knew that I would have to stick my neck out, but that was clearly what he wanted. Summarizing all my data, I told Nimitz that the carriers would probably attack on the morning of 4 June, from the north-west on a bearing of 325 degrees. They could be sighted at about 175 miles from Midway at around 0700 hours local time.
On the strength of this estimate, Admiral Nimitz crossed his Rubicon on 27 May 1942…I knew very well the extent to which Nimitz had staked the fate of the Pacific Fleet on our estimates, and his own judgment, against those of Admiral King and his staff in Washington.” – …And I was There (Ed Layton) 1985, pg. 430.
And sixty-seven years later, off Wake Island – the Nimitz-class carrier, USS John C. Stennis (CVN 74) headed in the opposite direction of Kido Butai…
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