660년 당군과 신라군의 연합 작전에서의 몇 가지 문제

Abstract

This paper is to find out what intention brought about the allied military operation of Tang Dynasty and Silla to attack Baekjae in 660 and how it was carried out. The existing research results are accumulated and the outline of the basic strategy of the Tang and Silla allied forces is revealed. However, I tried to restructure the united operations of the two countries in detail by filling in areas that are not mentioned or need reinforcement.. First, the Tang who decided to attack Baekje decided to meet Silla in Deokmul Island because the Tang army arrived at Deokmul Island using the middle crossing route of the West Sea. Information on this route seems to have been provided by Silla. At that time, the Tang had not given a specific plan to Silla, so Silla army had to keep in mind that either the army with the Tang army in Gyeonggi-do, or the army of the two countries went apart. So the Silla army was up north to Namchenjeong. Although this was not the intention of the Silla army, the Silla army's advance to the north led to the confusion of Baekje's defense strategy. The strategy that Su Dingfang proposed during the talk at the Deokmul Island was simultaneous execution of both army and naval attack and to join the forces in the south of Sabi-castle. The intention of the strategy to use both army and naval troops was to distribute defense of Baekjae forces to minimize loss of soldiers and to end the battle soon. However, it was disadvantageous for Silla, which had to break through the Baekje border on land, compared to Tang which was to go from the sea. The reason that the two armies decided to join in the south of Sabi Fortress was to advance to the area where Baekjae’s defense was relatively weak but also, in the event of an emergency, for King Uija to escape to the south in order to prevent the war from lasting long. On the other hand, the opinion that the main role of Silla at that time was taking charge of distributing supplies for the Tang army is spreading widely. However, it is difficult to reckon that the army of Silla took the role considering its actual transportation ability and the issue of military strategy. In particular, the fact Yu Ingye of Tang was running separate ship for supply signifies that they did not made the troops of Silla to take responsibility of distributing supplies.