On the night of January 10, 1965, an American made U-2 high-altitude reconnaissance aircraft of the Kuomintang air force entered and fled to Northwest China for reconnaissance. Our ground to air missile unit shot down the U-2 when it passed Baotou, creating a precedent for our army to shoot down the enemy U-2 high-altitude reconnaissance aircraft at night. This is an example of our army's use of "close and fast combat method" to annihilate the enemy at night after the U-2 is equipped with electronic warning and jamming equipment. The remains of the US made U-2 high-altitude reconnaissance aircraft now in the Military Museum of the Chinese people's revolution. After the founding of new China, the Kuomintang air force continued to use American rb-57d, U-2 and other high-altitude reconnaissance aircraft to spy and harass the hinterland of the mainland. Using the most advanced sam-2 air defense missile introduced from the Soviet Union, the ground to air missile unit of the people's air force successfully shot down an invading enemy rb-57d high-altitude reconnaissance aircraft on October 7, 1959, setting a precedent for ground to air missiles to shoot down enemy aircraft and achieving a major victory in territorial air defense operations. In the following ten years or so, our ground to air missile forces and the enemy engaged in technical and tactical duels around reconnaissance and anti reconnaissance, jamming and anti-jamming. The enemy is equipped with electronic warning and electronic jamming systems to prevent the attack of our surface to air missiles. We break the enemy's reconnaissance and surveillance by setting ambushes and innovating the "close and fast operation method". As a rapid method of annihilating the enemy created by the ground to air missile force to shoot down the U-2 high-altitude reconnaissance aircraft, the "near fast method of operation" is still one of the basic methods of anti air raid operations. Our army's commanders and fighters learned from many failures in actual combat. Without advanced electronic countermeasures, they boldly broke through the rigid provisions of the Soviet military's teaching orders, created brand-new combat methods such as compressed radar start-up distance and fast combat operation, repeatedly shot down enemy aircraft, and effectively defended the security of the motherland's airspace. On October 16, 1964, China's first atomic bomb exploded successfully in the western region. This great achievement that attracted worldwide attention quickly changed the world pattern at that time. In order to find out the details of China's nuclear weapon test, the United States supports the Kuomintang air force in stepping up its disturbance and reconnaissance activities in the hinterland of Northwest China. From October 1964 to January 1965, the enemy U-2 entered the hinterland of the mainland 11 times, including reconnaissance in Lanzhou and Baotou areas 6 times. On November 26, 1964, a U-2 that invaded the sky over Lanzhou, Gansu Province was defeated and narrowly escaped because of the new installation of electronic jamming equipment. Due to the addition of infrared camera equipment to the enemy U-2, the reconnaissance activities of the enemy aircraft changed from daytime to day and night. Through the analysis of the enemy reconnaissance trajectory, it is found that when the enemy aircraft enter and flee at night, they usually take the big city as the route check point and maintain a direct flight route before entering the reconnaissance target. Our ground to air missile troops promptly adjusted their troop deployment and set up ambushes near Lanzhou, Gansu and Baotou, Inner Mongolia, in preparation for attacking the U-2 fleeing into Lanzhou and Baotou. During this period, officers and men gave full play to military democracy and carefully studied the changes in the enemy's situation. After we innovated the "near fast warfare method" and won many battles, the enemy added electronic jamming equipment on the basis of the original warning equipment, making the U-2 more difficult to fight. This type of electronic jamming equipment is a set of angle deception answer jammer. When the antenna of the guidance radar is turned on, U-2 can not only automatically alarm for air maneuver, but also synchronously launch jamming, increasing the resistance difficulty of ground to air missile forces. On the basis of learning the lessons from the failure to resist the installation of new equipment U-2 in the early stage, the ground to air missile force has widely carried out the activity of "being familiar with the enemy's answer jamming and studying the anti enemy's answer jamming countermeasures". After 16 tactical and technical studies, our army finally formed a set of solutions. Technically, the ground to air missile force analyzed and studied the recorded response jamming images and waveforms, found the characteristics of the enemy response jamming waveform, and found out the weakness of this jamming system, that is, the jamming signal will lag the real target signal, but will not really eliminate the real signal. Officers and men "control change by change", and put forward the method of tracking U-2 by manual control. At the same time, with the cooperation of the technical department, the officers and men refitted the guidance radar, changed the way the antenna captured and tracked the target, deceived the electronic warning system of the enemy aircraft, so that the enemy could not give warning and use electronic jamming equipment. In terms of tactics, in order to overcome the difficult problem of capturing and tracking targets by guidance radar, our army organized coordinated training among command post, air intelligence and radar. Through repeated hard training, the combat actions of the operators of various systems of ground to air missiles are closely coordinated, the error law is clearly understood and remembered, and the hard skill of catching the target when the antenna is turned on is practiced. Focusing on the "subject" of U-2 night reconnaissance, the ground to air missile force paid great attention to night actual combat training. In order to make the troops adapt to the rhythm of night combat as soon as possible and improve the night command and weapon operation level of officers and soldiers, in view of the characteristics of night combat and the short board subjects of night training, officers and soldiers have strengthened night calibration, missile loading and unloading, antenna transceiver, line retraction and release, shooting preparation and collaborative training, and organized martial arts competitions and assessments for many times to continuously improve the enthusiasm and confidence of night combat and night training, It also summarizes the "three-step" of night training and night War security organization to ensure that they can practice and play well. In order to speed up the collection of information about China's northwest nuclear industry and nuclear facilities, the Kuomintang air force decided to continue to send U-2 to Lanzhou and Baotou for reconnaissance. After learning the intelligence, our ground to air missile unit received the order of the superior, completed all combat preparations before dark on January 10, 1965, carefully inspected the weapons, and waited for the U-2 to attack after ensuring that everything was correct. When the enemy aircraft took off, our early warning radar immediately captured the enemy aircraft, and the guidance radar was ready to start up after listening to the order. When U-2 entered the attack range of our surface to air missile, I immediately started to fight, hit the enemy aircraft at one stroke, captured the enemy pilot, and obtained the enemy's electronic jamming equipment and infrared night photography equipment. This battle not only pioneered the night annihilation of U-2, but also promoted the combat application of our surface to air missiles to a new stage. Through the technical innovation and Tactical Research of shooting down enemy aircraft, officers and soldiers have a new understanding of the new combat style of electronic warfare, and explore anti-jamming measures and methods suitable for the current situation of China's weapons and equipment. Future air raid and anti air raid operations will be carried out in a complex electromagnetic environment. Only by deeply studying the technical system and operation mechanism of the enemy's interference means can we find the enemy's shortcomings and break them. Only with the continuous promotion of confrontation and anti resistance can we make the spiral development and improvement of air defense operation tactics and technology. (outlook new era)