张学良将军在其父张作霖被炸死后主政东北,顺应时代进步和国家统一潮流,冲破对华实施强力政策以求巩固和扩大“满蒙特殊地位和权益”的田中外交,义无反顾,改旗易帜,采用拖延、回避乃至清除内奸等灵活的外交手段,挫败日本帝国主义企图通过外交手段达到阻止易帜、获取商租权以及签订“山本—张作霖密约”等扩大对东北侵略的图谋,致使田中内阁倒台。 Following the death of his father Zhang Zuolin, Chang Hsueh-liang took the reins of the northeast and conformed to the progress of the times and the trend of national unification and broke through the policy of forcible implementation of China’s strong policies in order to consolidate and expand “the special status and rights and interests of Manchuria.” By using such flexible diplomatic means as delay, avoidance and even the removal of traitors, the United States defeated Japanese imperialists in their attempts to reach the goal of expanding their trust in the Northeast by diplomatic means such as blocking the right of signatory, obtaining commercial and tenancy rights, and signing “Yamamoto-Zhang Zuolin intercession” The collapse of Tanaka Cabinet.