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The World Wonders
"The world wonders" is a phrase which rose to notoriety following its use during World War II when it appeared as part of a Code (cryptography)#Cryptanalysis of codes, decoded message sent by Fleet Admiral Chester Nimitz, Commander in Chief, U.S. Pacific Fleet, to Admiral William Halsey Jr. at the height of the Battle of Leyte Gulf on October 25, 1944. The words, intended to be without meaning, were added as padding (cryptography), security padding in an encryption, encrypted message to hinder Japanese attempts at cryptanalysis, but were mistakenly included in the decoded text given to Halsey. Halsey interpreted the phrase as a harsh and sarcastic rebuke, and as a consequence dropped his futile pursuit of a decoy Japanese carrier task force, and, belatedly, reversed some of his ships in a fruitless effort to aid United States forces in the Battle off Samar. Encryption strategy Encryption cipher, cyphers can be defeated when easily guessed common patterns are recognized in the mess ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Security Padding
In cryptography, padding is any of a number of distinct practices which all include adding data to the beginning, middle, or end of a message prior to encryption. In classical cryptography, padding may include adding nonsense phrases to a message to obscure the fact that many messages end in predictable ways, e.g. ''sincerely yours''. Classical cryptography Official messages often start and end in predictable ways: ''My dear ambassador, Weather report, Sincerely yours'', etc. The primary use of padding with classical ciphers is to prevent the cryptanalyst from using that predictability to find Known-plaintext attack, known plaintext that aids in breaking the encryption. Random length padding also prevents an attacker from knowing the exact length of the plaintext message. A famous example of classical padding which caused a great misunderstanding is "the world wonders" incident, which nearly caused an Allied loss at the WWII Battle off Samar, part of the larger Battle of Leyte Gul ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pacific War
The Pacific War, sometimes called the Asia–Pacific War, was the theater of World War II that was fought in Asia, the Pacific Ocean, the Indian Ocean, and Oceania. It was geographically the largest theater of the war, including the vast Pacific Ocean theater, the South West Pacific theater, the Second Sino-Japanese War, and the Soviet–Japanese War. The Second Sino-Japanese War between the Empire of Japan and the Republic of China had been in progress since 7 July 1937, with hostilities dating back as far as 19 September 1931 with the Japanese invasion of Manchuria. However, it is more widely accepted that the Pacific War itself began on 7 December (8 December Japanese time) 1941, when the Japanese simultaneously invaded Thailand, attacked the British colonies of Malaya, Singapore, and Hong Kong as well as the United States military and naval bases in Hawaii, Wake Island, Guam, and the Philippines. The Pacific War saw the Allies pitted against Japan, the latter ai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thomas C
Thomas may refer to: People * List of people with given name Thomas * Thomas (name) * Thomas (surname) * Saint Thomas (other) * Thomas Aquinas (1225–1274) Italian Dominican friar, philosopher, and Doctor of the Church * Thomas the Apostle * Thomas (bishop of the East Angles) (fl. 640s–650s), medieval Bishop of the East Angles * Thomas (Archdeacon of Barnstaple) (fl. 1203), Archdeacon of Barnstaple * Thomas, Count of Perche (1195–1217), Count of Perche * Thomas (bishop of Finland) (1248), first known Bishop of Finland * Thomas, Earl of Mar (1330–1377), 14th-century Earl, Aberdeen, Scotland Geography Places in the United States * Thomas, Illinois * Thomas, Indiana * Thomas, Oklahoma * Thomas, Oregon * Thomas, South Dakota * Thomas, Virginia * Thomas, Washington * Thomas, West Virginia * Thomas County (other) * Thomas Township (other) Elsewhere * Thomas Glacier (Greenland) Arts, entertainment, and media * ''Thomas'' (Burton novel) 1969 novel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
San Bernardino Strait
The San Bernardino Strait ( fil, Kipot ng San Bernardino) is a strait in the Philippines, connecting the Samar Sea with the Philippine Sea. It separates the Bicol Peninsula of Luzon island from the island of Samar in the south. History During this ill-fated expedition, one ship alone, the little ''San Juan de Letran'' with a skeleton crew of only 20 men, logged more than 5,000 kilometres in Philippine waters, including those of the San Bernardino Strait, and the San Juanico Strait between Samar and Leyte.Wiliam Henry Scott (1985) '' Cracks in the parchment curtain and other essays in Philippine history''. New Day Publishers. , p 49–52 The ''San Juan'' also completely circumnavigated the island of Mindanao, then tried to reach Mexico but was blown back to the Marianas by a storm in the North Pacific. It made its way back to the ''Filipinas'' (as Samar and Leyte had been named by Villalobos), and on January 3, 1544 ran aground in the treacherous currents of the San Bernardino ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Escort Carriers
The escort carrier or escort aircraft carrier (U.S. hull classification symbol CVE), also called a "jeep carrier" or "baby flattop" in the United States Navy (USN) or "Woolworth Carrier" by the Royal Navy, was a small and slow type of aircraft carrier used by the Royal Navy, the United States Navy, the Imperial Japanese Navy and Imperial Japanese Army Air Force in World War II. They were typically half the length and a third the displacement of larger fleet carriers, slower, more-lightly armed and armored, and carried fewer planes. Escort carriers were most often built upon a commercial ship hull, so they were cheaper and could be built quickly. This was their principal advantage as they could be completed in greater numbers as a stop-gap when fleet carriers were scarce. However, the lack of protection made escort carriers particularly vulnerable, and several were sunk with great loss of life. The light carrier (U.S. hull classification symbol CVL) was a similar concept to the e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Army Center Of Military History
The United States Army Center of Military History (CMH) is a directorate within the United States Army Training and Doctrine Command. The Institute of Heraldry remains within the Office of the Administrative Assistant to the Secretary of the Army. The center is responsible for the appropriate use of history and military records throughout the United States Army. Traditionally, this mission has meant recording the official history of the army in both peace and war, while advising the army staff on historical matters. CMH is the flagship organization leading the Army Historical Program. CMH is also in charge of the National Museum of the United States Army, which was recently completed at Fort Belvoir, Virginia. Mission The center traces its lineage back to historians under the Secretary of War who compiled the ''Official Records of the Rebellion'', an extensive history of the American Civil War begun in 1874. A similar work on World War I was prepared by the Historical Section o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1st Air Fleet Of The Imperial Japanese Navy
The , also known as the ''Kidō Butai'' ("Mobile Force"), was a name used for a combined carrier battle group comprising most of the aircraft carriers and carrier air groups of the Imperial Japanese Navy (IJN) during the first eight months of the Pacific War. At the time of its best-known operation, the attack on Pearl Harbor, in December 1941, the 1st Air Fleet was the world's largest fleet of aircraft carriers. In its second generation, 1st Air Fleet was a land-based fleet of "kichi kōkūtai" (base air unit(s)). Origins In 1912, the British Royal Navy had established its own flying branch, the Royal Naval Air Service (RNAS). The IJN was modeled on the Royal Navy and the IJN Admiralty sought establishment of their own Naval Air Service. The IJN had also observed technical developments in other countries and saw military potential of the airplane. In 1913, the IJN seaplane carrier ''Wakamiya'' was converted into a seaplane tender and aircraft were purchased. The 1st and 2nd Air ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Third Carrier Division
The was primarily a seaplane tender unit of the Imperial Japanese Navy's Combined Fleet The was the main sea-going component of the Imperial Japanese Navy. Until 1933, the Combined Fleet was not a permanent organization, but a temporary force formed for the duration of a conflict or major naval maneuvers from various units norm .... Organization Commander Footnotes Bibliography *''"Monthly The Maru" series, and "The Maru Special" series'', (Japan) *''"Monthly Ships of the World" series'', {{cite web , url=http://www.ships-net.co.jp/ , title=Kaijinsha (Japan) *''"Famous Airplanes of the World" series and "Monthly Kōku Fan" series'', Bunrindō (Japan) 3 Units of the Imperial Japanese Navy Air Service Military units and formations established in 1936 Military units and formations disestablished in 1944 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Japanese Battleship Yamato
was the lead ship of her class of battleships built for the Imperial Japanese Navy (IJN) shortly before World War II. She and her sister ship, , were the heaviest and most powerfully armed battleships ever constructed, displacing nearly at full load and armed with nine Type 94 main guns, which were the largest guns ever mounted on a warship. They remained the largest warships constructed in Asia until the launch of the Chinese aircraft carrier Fujian in 2022. Named after the ancient Japanese Yamato Province, ''Yamato'' was designed to counter the numerically superior battleship fleet of the United States, Japan's main rival in the Pacific. She was laid down in 1937 and formally commissioned a week after the Pearl Harbor attack in late 1941. Throughout 1942, she served as the flagship of the Combined Fleet, and in June 1942 Admiral Isoroku Yamamoto directed the fleet from her bridge during the Battle of Midway, a disastrous defeat for Japan. ''Musashi'' took over as the C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
40 Cm/45 Type 94 Naval Gun
The Japanese was a naval gun, the largest ever mounted on a warship. Only two ships carried them, the Imperial Japanese Navy's World War II battleships ''Yamato'' and '' Musashi''. They were designated as a much smaller 40 cm (15.75 in) gun in an effort to hide their true size. The gun was designed in accordance with the prevailing Japanese naval strategy of Kantai Kessen, the Decisive Battle Doctrine, which presupposed Japan would win a war by fighting and winning a single, decisive naval action. Essential to that victory was being able to out-gun and out-fight its adversary. No other ship built could match the firepower and broadside weight of a ''Yamato''-class battleship. In spite of this, there were no battleship-to-battleship engagements involving either completed vessel of the ''Yamato''-class and an enemy warship. Both were sunk by aerial attack. Description The 46 cm/45 Type 94 naval rifle was a wire-wound gun. Mounted in three 3-gun turrets (nin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leyte Gulf Order Of Battle
The Battle of Leyte Gulf, generally considered to be the largest naval combat in history, was fought 24–25 October 1944 in the waters of the Philippine Islands by elements of the Imperial Japanese Navy's Combined Fleet (bringing together the IJN's 2nd Fleet, 3rd Fleet and 5th Fleet) and the United States Navy's Pacific Fleet (bringing together the USN's 3rd Fleet and 7th Fleet). Of the five separate engagements that made up the battle as a whole, the forces involved in the three principal ones are listed here. Since the Japanese assumed the tactical initiative in all three actions, their forces are listed first in each section. ''Losses in these three actions'' IJN: 1 fleet carrier, 3 light carriers, 2 old battleships, 3 heavy cruisers, 3 light cruisers, 9 destroyers, 1 oiler USN: 2 escort carriers, 2 destroyers, 1 destroyer escort * The light aircraft carrier was heavily damaged and scuttled with great loss of life on 24 October while engaging in battle against lan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jisaburō Ozawa
was an admiral in the Imperial Japanese Navy during World War II. He was the last Commander-in-Chief of the Combined Fleet. Ozawa has been noted for his unusual height, measuring in at over tall, although his exact height has not been reliably reported.Wikipedia may have played a role in spreading an unverified claim that Ozawa was tall. See . Notes Further reading * * * * * * External links * Post-war interrogations o16 October 1945an {{DEFAULTSORT:Ozawa, Jisaburo 1886 births 1966 deaths People from Miyazaki Prefecture Imperial Japanese Navy admirals Japanese admirals of World War II ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
