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..