Gummojam's War...Second

 3. Stories about the fall of Goguryeo, stories about the fall of Goguryeo, and discussions and research on why Goguryeo fell have been relatively active. As someone said, "An extinct history makes humans sad," a miserable and desperate history will be enough to attract people's interest and hearts. As if the last moment of Constantinople falling on May 28, 1453 by Sultan Memed II of the Ottoman Turks was more eye-catching than the hundreds of years during which the Byzantine Empire was maintained… Discussions and analysis on the cause of Goguryeo's fall have been conducted enough so far. What I want to say here is concern about trying to define the fall of a civilized country that has been maintained for more than 700 years, and has spent time as a central and maritime power in East Asia, and has created or accepted various cultures. Of course, the direct connection to the fall of Goguryeo is the bloody political system of Yeon Gaesomun brought by the aristocratic coalition government, which is believed to have appeared in the mid-6th century, and the post-power struggle of Yeon Gaesomun. There has been in-depth analysis and research from various angles on the cause of Goguryeo's collapse, and new and diverse interpretations are also lined up. Therefore, here we will look at the fall of Goguryeo from a military perspective. From a military point of view, the fall of Goguryeo seems to be easier to explain. Goguryeo in 668 was in a similar position to the Third German Empire in 1944. No, it would be better to say that it is a worse situation because there was an absence of a competent commander and an internal traitor. Military experts always cited two head-on wars as the main reason for Germany's defeat during World War I and II. The enemies pushed from both sides have always been objects to be avoided since ancient times, and often pushed the people or country into ruin. The reason why the two head-to-head wars are really scary is that strategies have an adverse impact on dispersion, overall strategy establishment, and efficient distribution of power, but they also include lack of space and fear. Having someone behind your back besides the enemy in front of you will be a considerable burden on both individuals and organizations. It's hard to predict, there are many places to block, and the space to move is narrow.Goguryeo troops in 667 and 668 clearly showed a very different appearance than before. There seemed to be no overall strategy, and he was always dragged by the enemy's offensive, and the belated response was pushed back by the enemy's counterattack or dominant power, leading to greater failure and frustration. In the battles of 612 and 613, and 645 and 661, Goguryeo troops partially failed and lost, but eventually won the war. The powerful and persistent Goguryeo army caused considerable frustration to the other party. The decisive reason why Tang Tae-jong's claim to give up Ansi-seong and attack Geonan-seong after the Battle of Jupilsan between June 21 and 23, 645, or the Ogolseong attack plan proposed by Goguryeo general Ko Yeon-soo, can be considered in connection with securing the supply route. Although the reason for the emperor's motherhood was given, the fear of the danger of the rear that could arise from passing by without taking Ansi Castle eventually hampered the party. Lim Yong-han's War and History - Referring to this part in the Three Kingdoms, Euljimundeok and other warriors who fought against the Sui Dynasty in the past use the expression of saving Goguryeo, but I don't think the overall result would have changed even if Dangtaejong gave up Ansi-seong and attacked Ogolseong or Geonan-seong.Of course, the war would have been longer and the damage would have increased. The intangible determination to win and patience to cope with death often led to practical power in battlefields using cold weapons. Goguryeo had these things until at least 645 or 662. But why did they disappear in 667? It is not recorded when Yeon Gaesomun died.Danjae Shin Chae-ho argues that Kim Yong-man died in 662 and most scholars argue that he died in 665 and 666. The last event that can confirm the deeds of Yeon Gaesomun in the Samguksagi was the defeat of Bang Hyo-tae, the Baekjusa Temple of the party and general of the Okjeodo march, in the first lunar month of 662. What is important is the division and conflict of the ruling class that probably appeared after Yeon Gaesomun's death than at the time of Yeon Gaesun's death.And it will be the devastating result of it. Yeon Gaesomun's conflict and conflict between his eldest son, Namsaeng, and his other two younger siblings, who took over the post-power, were detailed in the Three Kingdoms Fraud, and there were many references. According to the records of the autonomous governor, Goguryeo's internal strife was known to the party in May 666, and it was next month that the army was given to General Jwahyo's writing force to save the in-crisis Namsaeng. The civil war between brothers, which seems to have started in early 666, was recorded only in the Goguryeo book of the Three Kingdoms Sagi that Namsaeng fled to the shrine, but Yeonnam Saengmyo Monument says that 6 castles, including domestic castles, and 100,000 units, also followed Yeonnamsaeng. It is possible that Yeonnamsaeng did not directly go to the party based on the record that Seol In-gwi captured Namsoseong, Mokjeoseong, and Changamseong Fortress and joined Yeonnamsaeng's army in Naeseong Fortress after Lee Se-jeok captured the fortress in September 667. Or, there is a possibility that Yeonnamsaeng went directly to Jangan and returned to Pyongyang after receiving an official post as the general of the marching army and the dance ambassador of Sajijeol. As Nanami Shiona said, civil war is no different from hurting one's own body. Even if you win, the wounds you made on your own will not heal well and that memory will last longer. The civil war between brothers in 666 forced Goguryeo to hurt its own body. Furthermore, if the areas that were the battlefields were domestic fortresses, which were treated as ancillary provinces along with Hansung, Ogolseong Fortress, which was the rear base of the Yoha defense line, and Hyeondoseong Fortress, which was bordered by Namsaeng Tombstones, it means that Namsaeng was under control. The party's third large-scale Goguryeo expedition, which began in December 666, showed a different pattern than before. The castle was captured, and a traitor, who had not appeared even in a more desperate situation before that, opened the gate and surrendered. When the centrality fell, the surrounding castles surrendered all at once without any decent resistance, and local counterattacks were neither systematic nor meticulous. Danggun also attacks Goguryeo in a different way than before. Prior to that, it focused on securing a supply path between castles and castles, but now it shows that it occupies the centrality and surroundings of a specific region at once. Lines are always at risk of being cut off, but sides or spaces are not easily cut or broken. Although it failed to capture Ansi Castle, the party secured 16 fortresses in the vicinity and connected to Yeonnamsaeng's forces in Naeseong Fortress, and the following year, Goguryeo began to cut its hands and feet by getting 40 fortresses in the vicinity. Due to the offensive of the party's forces stationed in Silla and Baekje, which began in June 668, 12 second-tier castles, including Hanseong, the central city of southern Goguryeo, surrendered without much resistance, and the southern region was also taken away by the party and Silla forces. Although it was a betrayal of the monk's divinity as well as the direct cause of the fall of Goguryeo and the fall of Pyongyang Castle, Pyongyang Castle was destined to remain unchanged even if the divinity did not betray. The party and Silla forces surrounding Pyongyang Castle did not have to worry about the supply problem as before, and did not have to worry about the attack behind them. In the end, Goguryeo had a civil war leading to the betrayal of the ruling class and the subsequent collapse of the defense line.Due to the absence of an efficient defense strategy due to the two head-to-head wars and, above all, the absence of strong leadership, it enters the path of collapse. It is believed that the fall of Goguryeo not only dramatically changed the fate of many Goguryeo people living in that era, but also has a great influence on us today. Then, what should we learn from the fall of Goguryeo? The reason why I personally like Goguryeo is that it shows both the capabilities and limitations that the Korean people can show. He was not afraid of death and pain to be strong, and he did not hesitate to risk his fate to maintain his power. He did not give in even at the sight of a powerful enemy in front of him, and he won an incredibly pleasant victory, heating people's hearts even now, a thousand and hundreds of years later. However, the internal strife and betrayal between brothers led Goguryeo to collapse incredibly quickly, and after the fall of Goguryeo, we never created Goguryeo again. I believe that there are many things in the three letters Goguryeo.The fall of Goguryeo has given us many tasks and fate. Whether we remember Goguryeo only as a power represented by iron, or as a country with large land, or say it was overestimated or not worth remembering, as long as we remember Goguryeo, we will have to learn something from Goguryeo. The sudden fall of Goguryeo changed the lives of countless people who believed themselves to be Goguryeo people. There were people who gave in to fate, and there were people who refused fate. It is not known why Geommojam, who had remained in history, held a knife because he refused fate. Perhaps he could also know that his life would not have ended flat as soon as he picked up the knife. However, the sword cap lifted a knife, which eventually led to death. Whether he was killed by Ahn Seung's sword or died while fighting the Tang army as the writer imagined, it is certain that he eventually tried to protect Goguryeo at the risk of his own fate.