평원왕대 고구려의 대외관계 - 요해遼海지역의 동향을 중심으로

Abstract

This study focuses on the trend of Liao-hai which affected not only each nations interests but was also susceptive to changes of the international situation. In addition, I examined the movements of Silla(新羅) and Paekjae(百濟) in relation to this trend. Koguryo was in a transitional period during which the period of the Northern and Southern Dynasties ended and Sui(隋) unified china during the reign of King Peongwon. Koguryo needed to change the focus of its foreign policy to serve the international situation. Namely, during the Northern and Southern Dynasties of china where North and south were pitted against each other, Koguryo focused on relations with Silla and Paekche. But as began to be unified, Koguryo began to pay more attention to improving relations with the Turks(突厥) and coping with the Sui Dynasty. The royal authority of Koguryo had laid a solid foundation during king Peongwon reign. King Peongwon(平原王) who succeeded to the throne after King Yangwon(陽原王), created a stable political situation, because King Yangwon had removed the influence of his in-laws and paved the way for significant progress in the royal authority. As a result, Koguryo was able to cope with the rapid changes of the international situation with strengthened royal authority during King Peongwon's reign.