自從習近平在「莊園會晤」時向歐巴馬提出，中美共同建立新型大國關係，中共在亞太地區已經是掩蓋不住大國崛起的態勢。此時的平壤早已察覺到大國的壓力，面對中美關係日趨緊密，北韓為維持政權延續以及從中獲取利益，盡其所能提高在中美大國競爭時的籌碼，尤其是在東北亞各國政權更替時，施展戰略邊緣政策。 美國藉由北韓核試爆議題，成功部署軍事規劃、高舉國際輿論的大旗，迫使中共不得不對北韓施以必要措施。對於北韓不斷的舉行核試爆與導彈試射，中共在維護其重要國家利益與面對美國再平衡戰略的考量下，轉而借力使力，運用北韓核議題的持續發酵，得以延長應對美國及國際壓力。 因此，整個東北亞的關係結構，就是有關各國在中共與美國之間，取得對自己最大利益的位置。 / Xi Jinping proposed to Obama in the "Ennenberg Estate” summit in California during June 2013, Beijing has aftermath tried every effort to establish a “New Type of Great Power Relations” with Washington. China rise has been an obvious trend in the Asia-Pacific region. In this critical moment, Pyongyang has been aware of the pressure of big powers, in the face of China and the United States increasingly conciliatory relationship. In order to stabilize the North Korean regime and continue to take advantage of power politics in this area, North Korea tries to facilitate its bargaining gravity within the Sino-American interaction when they seek to use Pyongyang to counterbalance against each other. Particularly North Korea tends to exert its caliber of brinkmanship policy while it notices that the East Asian area is in the process of regime reshuffles. . Against the backdrop of North Korea's threat of continuing nuclear tests, Washington successfully accomplished military deployment and dominate direction of world public opinion in forcing China to impose the necessary measures on North Korea. For North Korea's ongoing nuclear test and missile test, China intends to manipulate its advantage based on its national interest. In the meantime, China implements this policy to counterweight the US “Rebalancing” strategy. Beijing goes to use the issue of North Korean nuclear development to further exert its strategy in responding to the pressures from both the United States and international community. Therefore, the international structure in the Northeast Asia, therefore, is that the concerning countries are seeking for their maximize advantage in the Sino-U.S. strategic engagement.