In the early days of the War to Resist US Aggression and Aid Korea, our army's air defense force was seriously insufficient, especially in the face of US aircraft, and it was even more powerless; although our army later accepted the equipment of the Soviet Union and established its own antiaircraft artillery division, it was also a monk with little meat, and in all previous operations, the US army also fully learned from its experience, and changed from all-round bombing to key bombing, especially for the military supply and transportation lines in the rear of the volunteers, and in the case of helplessness, our army could only concentrate more than 70 percent of the antiaircraft guns in the rear. Cover transport.
After 1951, the War to Resist US Aggression and Aid Korea entered the second stage, when the US military was preparing to hold negotiations on the one hand, while on the other hand, it was actively mobilizing large forces on the battlefield and preparing to obtain strategic superiority before holding peace talks.
It is worth mentioning that there is a soldier of the anti-aircraft artillery battalion, who operated the anti-aircraft gun alone and shot down an F-84 when his comrades were injured, and during the entire campaign, he shot down 12 enemy planes and wounded 16 with the cooperation of his comrades, and his name was Liu Si.
Liu Si was a native of Xinzhou, Shanxi, and participated in the army during the War of Liberation, and later when our army formed an antiaircraft artillery unit, Liu Si's unit was also included in it as a whole, and Liu Si became a gunner, and the 3rd Company of the 31st Battalion of the Antiaircraft Artillery where Liu Si was located at that time was responsible for the defense of the Huangjiang Bridge, which shows the important role of this task.
In order to cut off the rear transportation and supply lines of our army, the US military has repeatedly concentrated bombers on the rear, including the F-48 fighter, which is a jet fighter developed by the US military in World War II.
Although Liu Si's anti-aircraft artillery squad was under pressure, it was still difficult to defend the position, but it was inevitably bombed by the US army, in an operation, Liu Si's position was bombed by 48 F-84 fighters, Liu Si sat on the pedestal, was also injured by shrapnel, fell down, and when he came to his senses, Liu Si found that his comrades around him had fallen in a pool of blood and died.
Liu Si was furious, and continued to operate the anti-aircraft gun alone, without the assistance of his comrades, he shot down an enemy plane alone, which almost created a miracle at that time, especially this miracle still belonged to Liu Si, because of his great achievements in the Korean war, Liu Si was later awarded the glorious title of first-class merit and second-class combat hero, and also won the second-class soldier honor medal awarded by North Korea.