The Study Of Caotingjie's Idea About Frontier Defense

In the 1980s, Russia launched a new round invasion to the Chinese northeast, then a patriotic scholar named Cao Tingjie who was born in ZhiJiang city of HuBe province and worked at the National Historical Museum, in order to stick up for nationality and resist Russia'aggression, joining the army resolutely, arriving at border defense in Jilin. After analyzing northeast border defense situation, he had put forward a set of system strategy of northeast border defense.In order to strengthen the northeast border defense, Cao Tingjie layed claim to enhance the stability on the political, mobilizing all people to defend Russia'aggressive; Immigrating northeast on the economy, accelerating the exploitation of wilderness and the mineral; Restructure military discipline on the military, improving the level of armament, strengthening a frontier to defend duty conductor; Diplomatic, stabilized North Korea political power, allied North Korea to fight back Russian and Japanese aggression; about anti-aggression war, once Russia launched a new round invasion in force, then took advantage of an opportunity backstroke, recovered the lose ground of northeast. The contents are abundant, considering completely.After the second Opium War, the northeast big slice territory had been lost and Russia had invaded deliberately, CaoTingjie's northeast border defense strategy was how to make all a new summary of northeast border defense stronger. So CaoTingjie had become an outstanding representative of the research realm of the northeast border defense, the influence of whose research was profound.The academic research concerning Cao Tingjie, only notice his contribution on the northeast history and geography in spite of his idea of border defense. This thesis tells Cao Tingjie is not only the first studying the northeast history and geography in the Chinese modern history but also a patriotic scholar and an outstanding northeast border defense problem expert at that time.