氣候變遷改變了全球氣候，也改變了北極。北極受全球暖化影響快速冰融，改變了區域內外的國際關係。中日韓三國為爭取未來可能浮現的北極航運利益，以及北極豐富的石油、天然氣等自然資源，紛紛設法進入此一區域。三國同時採取多邊和雙邊外交，意圖強化在北極的影響力。目前為止，三國的北極政策各自為政，甚至相互競爭，很容易產生利益衝突;北極重要的戰略地位，也易引起軍事緊張。事實上，三國在北極有共同的利益，這些共同利益有可能促成三國間的合作。  ..

Climate change has changed the Arctic. The Arctic ice is melting rapidly as the result of global warming. It changed the international relationships of the region and beyond. To compete for emerging Arctic shipping routes and abundant oil, natural gas and other natural resources, China, Japan and South Korea have managed to get involved in this area. The three countries are taking multilateral and bilateral diplomatic approaches simultaneously to strengthen their influence in the Arctic. So far, the three countries are acting..

蒙古位於亞洲內陸，夾處於中、俄兩大強國之間的戰略位置，使其曾長期被兩大強鄰視為領土的邊疆(frontier)。隨著 1991 年蘇聯瓦解，使近代蒙古第一次擁有完整主權。此後，蒙古的對外政策定調為「不結盟、等距離、全方位」，在「第三鄰國」戰略操作及地理條件基礎下，以平衡為原則，執行外交策略。誠然，蒙古如何在兩大強鄰之間求取平衡的生存之道，建構出獨立與靈活的外交及經貿空間，是蒙古確保國家安全的一大課題，也是本文的研究目的。  ..

Mongolia, with its strategic location between China and Russia in the inner Asia, is seen by its powerful neighbors for hundreds of years as a frontier. In 1991, modern Mongolia obtained complete sovereignty for the first time after the disruption of USSR, Hereafter, its foreign policy was principled upon “independence, non-alignment, multi-pillars”. Under the “third neighbor” strategy, Mongolia uses the opportunities endowed from its geography to balance neighboring threats, ensure its national securi..