645년 고구려-당 전쟁 당시 당의 水軍 운용 및 전략

Abstract

This article research the Goguryeo-Tang War in 645, focusing on Pingrangdaohengjun(平壤道行軍), which has not received much attention until now. First, the purpose of Pingrangdaohengjun’s formation and the route of advance were reviewed. Afterwards, Emperor Taizong of Tang’s strategy using these, Goguryeo’s response to it, and Pingrangdaohengjun’s purpose of attacking Geonan City(建安城) were reviewed. Emperor Taizong of Tang is using Pingrangdaohengjun as an amphibious strategy. The purpose of Pingrangdaohengju was to attack Pyongyang by sea, but one of the objectives was to supply military supplies to Liaotung across the sea. The size of Pingrangdaohengjun is estimated to be 70,000 people, including combat soldiers and sailors, and 43,000 pure combat troops. Pingrangdaohengjun’s military activities included military actions in the Amnokgang and the Battle of Camp of Doksan(獨山陣), which took place after the occupation of Bisa City(卑沙城), and these were studied. The purpose of Pingrangdaohengjun’s military action in Amnokgang was to disperse the military strength of Goguryeo armed forces through a coordinated operations with Shilla armed forces at the time. Meanwhile, the Battle of Camp of Doksan(獨山陣) is believed to have taken place in today’s Pulandian da gushan, and it is presumed that Goguryeo armed forces from Weiba Mountain Fortress(魏覇山城) were active at this time. Just before the war, Emperor Taizong of Tang adopted an offensive strategy to pressure Goguryeo from three sides by involving Baekje and Silla in the war, but Baekje’s dual attitude forced Shilla armed forces to withdraw from Goguryeo, and Emperor Taizong of Tang’s The strategy suffered a setback. Pingrangdaohengjun, which was conducting a coordinated operations with Shilla armed forces, had no choice but to stay in Bisa City to match the advance speed of Tang’s ground forces. Goguryeo took advantage of this situation and mobilized 150,000 troops to target the main base of Tang armed forces, but the battle of Mt.Jupil was frustrated. Afterwards, Emperor Taizong of Tang, who was caught in Ansi City(安市城), attempted to attack Geonan City using Pingrangdaohengjun to break the protracted war, but as a result, Tang armed forces withdrew without being able to overcome both Ansi City and Geonan City. Pingrangdaohengjun, which withdrew from Goguryeo, suffered a maritime accident at sea, and the punishment of Emperor Taizong of Tang, who followed in the footsteps of Emperor Yang of Sui, was awaited at his own country.