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This is the story of the U.S. Navy's communications intelligence (COMINT) effort between 1924 and 1941. It races the building of a program, under the Director of Naval Communications (OP-20), which extracted both radio and traffic intelligence from foreign military, commercial, and diplomatic communications. It shows the development of a small but remarkable organization (OP-20-G) which, by 1937, could clearly see the military, political, and even the international implications of effective cryptography and successful cryptanalysis at a time when radio communications were passing from infancy to childhood and Navy war planning was restricted to tactical situations. It also illustrates an organization plagues from its inception by shortages in money, manpower, and equipment, total absence of a secure, dedicated communications system, little real support or tasking from higher command authorities, and major imbalances between collection and processing capabilities. It explains how, in 1941, as a result of these problems, compounded by the stresses and exigencies of the time, the effort misplaced its focus from Japanese Navy traffic to Japanese diplomatic messages. Had Navy cryptanalysts been ordered to concentrate on the Japanese naval messages rather than Japanese diplomatic traffic, the United States would have had a much clearer picture of the Japanese military buildup and, with the warning provided by these messages, might have avoided the disaster of Pearl Harbor.
Pearl Harbor will long stand out in mens minds as an example of the results of basic unpreparedness of a peace loving nation, of highly efficient treacherous surprise attack and of the resulting unification of America into a single tidal wave of purpose to victory. Therefore, all will be interested in this unique narrative by Admiral Wallin. The Navy has long needed a succinct account of the salvage operations at Pearl Harbor that miraculously resurrected what appeared to be a forever shattered fleet. Admiral Wallin agreed to undertake the job. He was exactly the right man for it _ in talent, in perception, and in experience. He had served intimately with Admiral Nimitz and with Admiral Halsey in the South Pacific, has commanded three different Navy Yards, and was a highly successful Chief of the Bureau of Ships. On 7 December 1941 the then Captain Wallin was serving at Pearl Harbor. He witnessed the events of that shattering and unifying "Day of Infamy." His mind began to race at high speeds at once on the problems and means of getting the broken fleet back into service for its giant task. Unless the United States regained control of the sea, even greater disaster loomed. Without victory at sea, tyranny soon would surely rule all Asia and Europe. In a matter of time it would surely rule the Americas. Captain Wallin salvaged most of the broken Pearl Harbor fleet that went on to figure prominently in the United States Navys victory. So the account he masterfully tells covers what he masterfully accomplished. The United States owes him an unpayable debt for this high service among many others in his long career.
Using previously unreleased documents, the author reveals new evidence that FDR knew the attack on Pearl Harbor was coming and did nothing to prevent it.
In 1944, Secretary of War Henry L. Stimson, knowing that high-ranking members of the military had falsely testified before the various bodies investigating the attack on Pearl Harbor, selected a then-unknown major by the name of Henry C. Clausen to undertake a new investigation. From November 1944 to September 1945, Clausen traveled more than 55,000 miles and interviewed over a hundred U.S. and British Army, Navy, and civilian personnel. He was given the authority to go anywhere and question anyone under oath, from enlisted personnel right up to George C. Marshall, the chief of staff. He ultimately presented an 800 page report to Stimson—a report that revealed a massive operational failure by the United States to use the priceless intelligence signals that it had obtained months before Pearl Harbor. Pearl Harbor is the "final judgement"-the story behind Clausen's investigation and a blistering account of his conclusions.
"A Pulitzer Prize-winning reporter chronicles the 12 days leading up to the Japanese attack on Pearl Harbor, examining the miscommunications, clues, missteps and racist assumptions that may have been behind America's failure to safeguard against the tragedy, "--NoveList.
This account of the top secret investigation is “essential history . . . the authoritative appraisal of why American armed forces met the Japanese attack asleep” (The Christian Science Monitor). On December 6, 1941, Admiral Husband E. Kimmel, commander in chief of the United States Pacific Fleet, assured his staff that the Japanese would not attack Pearl Harbor. The next morning, Japanese carriers steamed toward Hawaii to launch one of the most devastating surprise attacks in the history of war, proving the admiral disastrously wrong. Immediately, an investigation began into how the American military could have been caught so unaware. The results of the initial investigation failed to implicate who was responsible for this intelligence debacle. Secretary of War Henry L. Stimson, realizing that high-ranking members of the military had provided false testimony, decided to reopen the investigation by bringing in an unknown major by the name of Henry C. Clausen. Over the course of ten months, from November 1944 to September 1945, Clausen led an exhaustive investigation. He logged more than fifty-five thousand miles and interviewed over one hundred military and civilian personnel, ultimately producing an eight-hundred-page report that brought new evidence to light. Clausen left no stone unturned in his dogged effort to determine who was truly responsible for the disaster at Pearl Harbor. Pearl Harbor: Final Judgement reveals all of the eye-opening details of Clausen’s investigation and is a damning account of massive intelligence failure. To this day, the story surrounding the Japanese attack on Pearl Harbor stokes controversy and conspiracy theories. This book provides conclusive evidence that shows how the US military missed so many signals and how it could have avoided the events of that fateful day.
A new look at the drama that lay behind the end of the war in the Pacific Signed on September 2, 1945 aboard the American battleship USS Missouri in Tokyo Bay by Japanese and Allied leaders, the instrument of surrender that formally ended the war in the Pacific brought to a close one of the most cataclysmic engagements in history. Behind it lay a debate that had been raging for some weeks prior among American military and political leaders. The surrender fulfilled the commitment that Franklin Roosevelt had made in 1943 at the Casablanca conference that it be "unconditional." Though readily accepted as policy at the time, after Roosevelt's death in April 1945 support for unconditional surrender wavered, particularly among Republicans in Congress, when the bloody campaigns on Iwo Jima and Okinawa made clear the cost of military victory against Japan. Germany's unconditional surrender in May 1945 had been one thing; the war in the pacific was another. Many conservatives favored a negotiated surrender. Though this was the last time American forces would impose surrender unconditionally, questions surrounding it continued through the 1950s and 1960s--with the Korean and Vietnam Wars--when liberal and conservative views reversed, including over the definition of "peace with honor." The subject was revived during the ceremonies surrounding the 50th anniversary in 1995, and the Gulf and Iraq Wars, when the subjects of exit strategies and "accomplished missions" were debated. Marc Gallicchio reveals how and why the surrender in Tokyo Bay unfolded as it did and the principle figures behind it, including George C. Marshall and Douglas MacArthur. The latter would effectively become the leader of Japan and his tenure, and indeed the very nature of the American occupation, was shaped by the nature of the surrender. Most importantly, Gallicchio reveals how the policy of unconditional surrender has shaped our memory and our understanding of World War II.