The intelligence was always intercepted by the Japanese army, the commander was worried about it, the soldiers made a plan, and since then the Japanese army has been confused
Many people who have military common sense will say intelligence, if there is no accurate source of intelligence on the battlefield, it is like walking in the fog without a sense of security, in the ancient war of our country, the people who collect intelligence work we call them scouts, that is, the current scouts, but the intelligence detected by scouts is not necessarily true, so with the development of the military, countries have their own set of methods in intelligence.
Take our War of Resistance Against Japanese Aggression during World War II, in fact, although the Chinese army is inferior to the Japanese army in terms of equipment, the number of our troops is several times that of them, and even so, we are still beaten and cannot fight back, and a large part of the reason is that the intelligence work is not as good as others, and we always lose the opportunity to be attacked by the Japanese army in an unconscious situation, and eventually suffer heavy losses.
At that time, the Japanese army made a lot of money for intelligence work, specially set up many intelligence agencies such as the Plum Organ, etc., before the war began to send some people who were proficient in Our culture to hide, or had been hidden in China a few years ago, and when the war began to collect intelligence, such a situation often made us powerless and helpless, the above is still only intelligence work on the eve of the war.
In the process of fighting with the Japanese, it is often necessary to convey changes in army defense or offensive deployment, but now the war is not like the ancient war, the ancient sending of individuals to pass orders can be, modern war battlefield is very vast, if you send individuals to pass orders, it is estimated that the battle is almost finished. With today's technology, there will naturally be a way to crack it.
At that time, the Chinese army and the Japanese army used communications radio, but the Japanese also mastered the deciphering technology, and before we could react after we issued the order, the Japanese army already knew what we were going to do next, so we were very passive, even if we spoke on a walkie-talkie, because there were Japanese who were proficient in Chinese.
Although the Japanese army seems to be relatively strict and systematic, but there are also times of negligence, in the Battle of Taierzhuang, the Chinese army gave the Japanese army a good lesson in intelligence, when the Japanese artillery was suppressed against our army, the telephone lines between the command headquarters and various units were cut off, and only radio stations or radio walkie-talkies could be used for contact.
The commander at that time, General Li Zongren, was very distressed, because backward intelligence meant being beaten, and the radio communications used in peacetime would be intercepted and deciphered by the Japanese army, and if they used walkie-talkies or radio communications, it was equivalent to sending information directly to the Japanese army.
Later, after consultation, it was decided to use the local dialect to contact, because Mandarin and other official language communications, the Japanese must be able to understand, at that time can only gamble, bet that the Japanese will not know the dialect of various regions, at that time, for the sake of prudence, the local dialect specially found is still the minority dialect of the Yunnan region that has not been occupied by Japan, and their dialect has almost no connection with Mandarin.
What was not surprising was that all the subsequent communications were monitored by the Japanese, but the Japanese intelligence personnel were also confused after hearing it, and they could not understand what the Chinese troops on the other side were saying, and this communication method worked very well in that war. Later, Japan also learned a lesson, but what also bothered them was that China has so many dialects, there are 56 ethnic groups alone, it is impossible to learn all dialects.