Do you know the Battle of Ssangnyeong?

 It was a "great" battle that took place a day before King Injo decided to surrender during the Manchu War. The following is the content of Yeonryeosil technology. ○ Heo Wan, a left-handed soldier, was terrified of his old age and shed tears when he treated people, so people knew he would definitely lose. The head was crossed by the combination of Minyoung, a right soldier, and 40,000 soldiers, but the soldiers were not dispatched, so they were vaguely unaware of the enemy's situation. In Gwangju Ssangnyeong, Minyoung camped on the ridge on the right and Heo Wan camped on the lower left, and Jeong Po-soo was pulled out and all firmly escorted themselves in the middle, and the middle and lower catchers were driven outside, but each person distributed two nyangs of gunpowder. Chogwan Lee Taek called in Lee Ki-young, a first official, and said, "If the outside cannot support it, can the center protect it alone?" Heo Wan heard and said, "Because there are not many first-place catchers." On the early morning of January 3, 33 of the enemy's ancestors advanced in a row from Namsan Sangbong Peak with wooden shields, and once our allies went out and fought, a brave and robust enemy soldier was killed by bullets and entered the camp. However, the catchers fired carelessly in a row and ran out of gunpowder, so the catchers shouted for more gunpowder and asked for more Jungpos. The enemy understood this word and urged him again to come forward and come close to the wooden desk. Andong Yeongjang Seonyanghae shot about 30 arrows by himself after being stabbed alone by the enemy's blade, but all of them were hit by wooden shields, and the arrows were already done, so he stood tall in the god's ground and was hit by the enemy's arrow. As the enemy soldier stormed into the wood, the center catcher failed to shoot once and collapsed on his own. When Heo Wan was scared and couldn't ride a horse, he helped him three times and burned him on a horse, but he fell repeatedly and was trampled to death. The corpses collapsed due to the collapse of the war sol were neatly stacked with woodblocks, so the enemy soldiers recklessly took them with short weapons. In addition, as it approached Woojin, Min-young arranged the camp and waited, and fired a shot at once, and the person who was hit died immediately. Since the enemy did not dare to persecute, he was about to win, but because he also gave only two nyangs of gunpowder, Hwaseung fell into the gunpowder and the gunpowder exploded, causing two won in Gambansuyeong and the military to burn down. The enemy took advantage of this time and fired, and the entire army was finally wiped out and Min-young died. After the enemy broke Yangjin, he took off the clothes of the dead and set a fire to burn them. At first, Seonyanghae asked three times to move the camp on Namsan Mountain, but Minwan did not listen, so it is said that the left and right Yangjin was finally defeated by about 300 cavalry. Since Shimyeon, the auditor of ○, claimed that Hwa-wan was alive, the silver tablet of Jeungjiwa Priest was crazy for Min-young and did not reach Heo Wan, but Jang, the son of Heo Wan, appealed and complained of resentment. Left-handed soldier Heo Wan's troops were devastated because the troops were not properly relocated since the re-supply of ammunition, and right-handed soldier Min Young's troops, who had been slightly disciplined compared to Heo Wan's troops, will be out of control due to a ridiculous accident. Taken together, about 40,000 Korean infantry armed with Hwaseungchong and Hwando were defeated by the attack of 2,000 Cheonggun "Gyeonggi soldiers," killing at least 300 people and scattered more than 30,000(-_-;). (There are many disagreements about the number of Cheongguns.) The Joseon army definitely knew that the Qing army was weak in firearms (the experience of Jeongmyo Horan), but due to the lack of shooting control, the Joseon army, which consumed all ammunition early, was re-supplied with ammunition, and everyone became busy running away due to the attack of the Qing soldiers.(I don't think there was a big one)