The so-called knowing oneself and knowing the other will not be destroyed in a hundred battles, this sentence is the most appropriate to use in the war years. In World War II, Britain devoted all its efforts to cracking the German "Enigma" code, making an important contribution to the victory over Nazi Germany, and the United States deciphered the Japanese code and won the Victory at the Battle of Midway in advance. Since the advent of the telegraph, intelligence warfare has become more and more important in the war, until the Allies and The Axis powers have benefited from intelligence warfare respectively, and the status of intelligence warfare in a huge battle has been completely established. British Prime Minister Winston Churchill even sacrificed the historical and cultural city of Coventry in order to protect the code of Nazi Germany. As Prime Minister Churchill put it: "The source of the code is the goose that lays the golden egg but never calls." ”
Cryptographic machines that hid highly classified and complex rules were the pride of codebreakers in World War II. Those masterpieces of high-level design are given the title of bomb. Countries are busy compiling complex passwords, but in difficult passwords, there are rules, and sooner or later they will be deciphered. During the Pacific War from 1941 to 1945, both the U.S. and Japanese armies racked their brains to decipher each other's communication codes in order to gain the initiative on the battlefield.
Unfortunately, in the early stage of the war, because Japan was fully prepared to crack the radio code of the US military in advance, most of the communications between the US troops were intercepted and deciphered, so the movements of the US troops in the Pacific were almost all seen by the Japanese army, and the US army had almost no secrets in front of the Japanese army. In this case, how can the US military win the war, all in the early stages of the war, the US military suffered in the Pacific War. Of course, the U.S. government and military leaders did not want to be spied on by the Japanese army for a long time, so they began to think about how to update their passwords. In the end, it was the U.S. military that was highly skilled, unexpectedly using a group of Navajo people from North American Indians as a source of cryptography, and using their language to become a cipher, so that the U.S. military was finally able to turn around in intelligence warfare and take the lead.
The unique linguistic structure of navajo makes it destined to be discovered and given a more sacred mission. There is no form of this language, and the language is handed down by the older generation. In fact, to this day, some indigenous tribes in Africa still use this method to pass on culture. The grammar and pronunciation of navajo is extremely strange, sounding a bit like the strange cry of some kind of beast. It expresses the connotation of language in terms of the strength and weakness of the tone, and the same tone can express four different meanings when spoken in four different tones. A Navajo speaker once said that the vocabulary of the Navajo language is very vivid, closer to nature, and one word can make the whole picture come to mind.
The Navajo ciphers working in the tropical jungle compiled military codes in Navajo and were the opinions of a white man named Johnston who gave the U.S. military in 1942. Johnston's father was a missionary who had been to the Navajo tribe and spoke fluent Navajo. At that time, this small tribe did not attract the attention of the United States government, and the great powers of the world were busy fighting wars, and there was no interest in these indigenous small tribes, so few people knew about the Navajo language. This was valued by johnston, who was extremely military-minded,
He believes that the language in this small tribe has great development value, and the so-called rarity is the case. As long as they mastered this tribe, the Japanese army had no chance of knowing the existence of this language, and it would be difficult to decipher the code evolved from the Navajo language. This language is passed down by word of mouth, there is no writing, its grammar, tone, syllables, etc. are very complex, and it is impossible to understand his meaning without special long-term training.
There was an assessment before the U.S. Marine Corps used the Navajo language as their cipher source. The assessment shows that no more than twenty-eight non-Navajo people in the world at that time were proficient in the language, most of them American scientists and missionaries who lived with the Navajo people for many years, and most importantly, none of these 28 people were Japanese. In this way, the Navajo language was used as a code source for the U.S. Marine Corps, the Navajo language was compiled into a code, and the Navajo tribe was also controlled by the United States, and some of the Navajo served in the U.S. Army, and those who did not serve were controlled. During World War II, more than 3,600 Navajos served in the military, but only 420 of them were Navajo code interpreters.
Of the six marine divisions of the Pacific Theater, they compiled and translated ciphers faster than any cipher machine. The Japanese were puzzled by the code they constructed using Navajo's everyday language and four hundred or so coded words of their own design. Although their codes were not taken very seriously in landing operations in the early days of the Pacific War, real gold was not afraid of fire, and commanders later saw it as an indispensable means of quickly transmitting classified military messages.
How easy is Navajo language, there is no harm without comparison, using three lines of English as an example, the same is to pass the message, Navajo only takes more than twenty seconds, while other traditional passwords may take about half an hour. In May 1942, the first group of 29 Navajos was conscripted into the U.S. army and assigned to compile codes in a secret place in California. They created a glossary of five hundred commonly used military terms based on navajo, and in 1942 almost only anthropologists and linguists wrote navajo. Navajo is mainly used for oral communication in reserved settlements, and cipher designers have been ordered to retain only its colloquial function, that is, neither the codebook nor the code to form a formula. Doing so maximizes assurance that Navajo passwords are not leaked.
Instead of using conventional cipher-making methods, the writers of the Navajo code have explored a new system of their own, inspired by the tribe, returned to nature, the source of everything, to find new inspiration, and finally wrote a unique Navajo code. After the Navajo code was designed, it was rigorously tested by U.S. intelligence forces. They enlisted cryptographers to try to decipher the Navajo cipher, and the experts spent three weeks trying to decipher a message written in the Navajo cipher, which ultimately failed. Even Navajo recruits who had not been trained in password use could not decipher it.
As the U.S. military pushed toward the Japanese mainland, the U.S. military was convinced that the new code was unbreakable. Indeed, when the angry Japanese captured an ordinary Navajo soldier, they forced him to decipher the code. But the soldier didn't do it, and he said to the Japanese, "It's a code they wrote themselves, and I can't figure it out." At this point, the Japanese army has seen the new code of the US army very strongly.
During the Pacific War, the U.S. Marine Corps recruited a total of four hundred and twenty Navajos to act as code correspondents. It has to be said that the emergence of the Navajo code has become the most difficult problem for the Japanese army to solve. It turned out that on the battlefield, the Japanese army could always predict the enemy by deciphering intelligence, but now it was subject to people everywhere, which made the Japanese hate the Navajo people and itch their teeth. The profit-making Americans regarded the Navajo people as treasures and would not easily let them get involved in danger, lest the entire set of compilation codes be cracked again by the Japanese army.
The Japanese army finally came up with a solution after much thought, but the effect was not great. The communication of these Japanese people on the model U.S. military radio all day long caused some trouble to the U.S. military. During the Battle of Saipan, a company on the front line of the U.S. Army was inexplicably attacked by bombs from the rear by its own men. The front-line troops immediately reacted to the situation at headquarters, and the artillery units were already a little confused at this time, because they had received two very different telegrams, one asking for the shelling and the other for stopping the shelling. When the artillery unit did not know who to believe, the headquarters sent an order asking if they had any Navajo people, and the artillery unit found the only Navajo to interact with the compatriots in the headquarters, and successfully resolved the crisis. The Marines called the Navajo chiefs, expecting them to wear bows and arrows, husses and eagle-like eyes.
It is also true that although the Navajo people have long ceased to use bows and arrows, they still have far more physical strength than ordinary marine soldiers, and they are still very excited when they march for miles and other soldiers are exhausted. One Navajo soldier recalled: "When you start passing on intelligence and everything is accurate, they start treating you like a king." "These Marines were always eagerly gathered around the Navajo soldiers, and the U.S. military top brass assigned personal guards to protect them from Marines who could not distinguish between Navajo and Japanese.
These soldiers had made many meritorious achievements, and in the battle to capture Iwo Jima, six Navajo soldiers sent more than 800 messages day and night, laying the foundation for the victory of the battle. These Navajo soldiers are highly respected by the Americans for their outstanding performance, and they can be awarded for their meritorious service like normal soldiers.
Conclusion: It is strange that Japan is a small island country with a small land area, and it is impossible to find an unknown dialect in Japan. The Method of Using Dialects to Create Codes in the United States was actually used in China's anti-Japanese battlefields. Chinese communicated with each other in the dialects of remote areas, and even if they were intercepted by the Japanese army, they could not decipher it. It is not as simple as a sentence, which represents the cultural prosperity and richness of a country, which is the envy of a small island country like Japan.