The Disputes Among Gaogouli, Baiji And Xinluo In The Korean Peninsula From The Fifth Century To The Middle Of The Seventh Century And The Northeast Asia Political Situation

The thesis concentrates on the disputes among Gaogouli, Baiji and Xinluo in the Korean Peninsula from the fifth century to the middle of the seventh century, mainly on the development changes of relationship of the three countries and the relations with the Northeast Asia political situation. The whole thesis is mainly made up by introduction, test and conclusion.The introduction mainly elaborates the direction of development in research, the research priorities and research methods.The test is divided into four chapters. The first chapter is "The Northeast Asia political situation of the fifth century and the expansion of Gaogouli". During the period of Eastern Jin Dynasty, Northern China was in a long-term division, the loss of power center leaded to the international order of Northesst Asia in a state of disorder. At the same time, gaogouli, Baiji and Xinluo had developed, formed the situation of tripartite confrontation among the three countries and contending for hegemony in the peninsula began to show. During this period, Gaogouli was particularly rapid development. An the west, Gaogouli took advantage of the political confusion in northern China, seized hold of Liao Dong from Houyan. At the south, Gaogouli occupied Lelang and some areas of Daifang, which territory extended to the Hanjiang river, and conflicted keen with Baiji that strive for northern advance. As the strength of Gaogouli, Xinluo made friendly relations with Gaogouli instead of that with Baiji. Gaogouli depended on its powerful military forces, not only suppress Baiji's northern advance, but also assist Xinluo in expelling invasion of Baiji and Japan in the period of Haotaiwang, so that Xinluo depended on Gaogouli itself. As a result, Gaogouli established on the position of overlord in the peninsula.Chapter Two is "The reorganization of the three countries' relations In the middle of the fifth century and the formation of North-South confrontation in Northeast Asia". Entering the middle of the fifth century, Southern and Northern Dynasty's antagonistic situation had formed in China, which deeply influenced the situation of the whole Northern Asia and the diplomacy of three countries in the Korean Peninsula. Gaogouli adjusted it strategies, on the one hand, it stabilized the relationship with the Southern and Northern Dynasty, especially with the Northern Wei Dynasty. On the other hand, it speeded up southward advance pace, one of the important measures was the capital relocation to Pyongyang. Baiji had made active diplomatic mediation in order to resisting the pressure to southern advance, engaged in a fierce foreign competition with Gaogouli. Firstly, Baiji improved the relationship with Xinluo on it's own initiative and formed alliance with Xinluo in order to resist the Southern advance of Gaogouli.Secondly,it improved the friendly relationship with Southern Dynasty of China. In addition, Baiji attempted to persuade Northern Wei Dynasty and combine with Qidan to attack Gaogouli. While Xinluo was interfered by Gaogouli in political and military aspects, it turned to cast off the control of Gaogouli during the period of King of Neqi, and formed alliance with Baiji to oppose Gaogouli. Thus, it formed the situation of Baiji and Xinluo's confrontation with Gaogouli, As the same time in the Northeast Asian region it formed the situation of North-South confrontation that Gaogouli mainly made relationships with Northern Dynasty and Baiji contact with South Dynasty and had been extended to the first half period of the sixth century.Chapter Three is "The three countries' stalemate situation from the middle of the sixth century to the beginning of the seventh century and the formation of the changing political situation in Northeast Asia". After entering the middle of the sixth century, Gaogouli, Baiji, Xinluo the three countries' strength had changed. During the period of the king of Yangyuan, due to the domestic royalty dispute, political chaos were caused, while abroad facing the threat of the Northern Qi and Tujue, which forced Gaogouli defer its southward advance pace to cope with the situation in the northwest changes in the peninsula hegemony in the defensive struggle. after being attacked by Gaogouli in 475, with the king of Dongcheng, Wuning, and other generations of kings' domination, till the period of Sheng Wang baiji came into the flomishing situation, and actively offensived Gaogouli in order to recover the river basin of Han Jiang. However, as Xinluo had betrayed, Baiji had been hit hard again. While Xinluo turned to put in order national system from the king of Zhizheng and Faxing period, so that its national strength had been continuously strengthened, and the king of Zhenxing vigorously explored the territory. As a result, it developed from a small country in the southeast corner of the Korean Peninsula to an inter-Korean Peninsula southeast and east of the country. It is particularly important that making use of the fights opportunity between Baiji and Gaogouli, Xinluo occupied the Han Jiang River that had important economic and strategic significance, which had an deep impact on the after years' historical development. But Xinluo also became against Baiji therefore, leading to a breakdown of more than 100-year alliance relationship. Because of the strength among the three countries' continuously growth and decline, the three countries turned into the stages of stalemate. This is associated with that all of the three countries were committed to expand their diplomatic space, forming a Northeast Asian multi diplomatic pattern. With the appearance and unity of Sui Dynasty in the end of six century, the three countries turned their diplomatic center to Sui Dynasty, which the contradictions between Sui Dynasty and Gaogouli became the principal contradiction in Northeast Asia, Baiji then made use of this opportunity to attack Xinluo, so Northeast Asia re-entered the state of war confrontation.Chapter Four is "The end of the three countries' disputes in the Korean Peninsula and the formation of Northeast Asian new political pattern in the middle and late seventh century". After entering the seventh century, the contradictions between Xinluo and Baiji continuously sharpened, as the principal contradiction in the Korean Peninsula. Until the early stage of the emperor Taizong times, basically maintained the balance diplomacy among the three countries on the peninsula. With the stabilization of the around situation, the contradictions between Gaogouli and Tang Dynasty started to come out in the 6 40s, then it became the main contradiction in Northeast Asia. However, the punitive attitude of Gaogouli eventually made Taizong launch on Gaogouli. In the first stage of the empero Taizong enthronement, Tang Dynasty changed the war strategy to Gaogouli, and took a long-term strategy of consumption of national strength. In the 650s, the peninsula experienced short peace, then after the integration of new power, there formed two major alliance confrontation that one party made up by Xinluo and Tang Dynasty, the other made up by Gaogouli, Baiji and Wo, the three countries' disputes evolved into an international war involving each country in Northeast Asia, the results were Baiji and Gaogouli have perished and the quit of Wo forces. This was not only declared the end of the three countries' disputes in the Korean Peninsula for centuries. Along with the changes in the situation on the peninsula, the potential contradictions between Tang Dynasty and Xinluo began to sharpen, which ultimately led to wars. Since Tang Dynasty was affected by the situation in the Northwest, it had to take the policy of retreating on the Korean Peninsula; Xinluo realized the rule to most of the Korean Peninsula, with a new national outlook on the stage of history in Northeast Asia, which led to the formation of new political pattern in Northeast Asian region.