After August, 1936, Japan successively issued National Policy Benchmarks, Imperial Foreign Policies, Measures Taken to China, and Guidelines for the Second Actions Toward the North China, working together to serve as policy foundation for Japan to launch the overall invasion in China., China’s victory of Suiyuan Campaign as well as the peaceful resolution of the Xi’an Incident had encouraged the public and achieved emotional cohesion, leading to a new stage in which China began to fight against Japanese insults. To change an unfavorable situation where Japan failed to toughly divide the North China, Japan acted to destroy the Sino-Soviet relation, "restarted to know China" under military dominance, and toward China implemented "new policies" represented by "Sato diplomacy". However, the "new policies" failed to change the basic thought of invading China rooted in Japanese military and political circles, and after limited contact with China, it began to retreat from "new policies" and adjust its foreign policies intended for China. Despite a fact that the National Government continued to promote peaceful dialogues with Japan, the opposite accelerated its invasion in the name of "punishing" China, further launching all-out war of aggression against China.