歐巴馬政府任內，美越軍事合作快速成長，將越戰時代兵戎相見 的兩軍，轉化為宣示共同操作與邁向武器共同生產的緊密夥伴。雖論 者常將兩國合作歸於中國威脅，但中國因素如何發揮影響，則少有探 討。對此，本文從目標界定和策略互動兩個層次，發現美越軍事合作 的目標皆為應對中國，但具體需求有所不同。而與中國的策略互動， 則決定美國何時改變常軌，從而拉近與越南在目標上的差異，這正可 解釋 2010-2016 年間美越軍事合作的變化。

During its tenure, the Obama administration ensured U.S.-Vietnam military cooperation moved forward rapidly, turning a foe on the Indochina field into a close partner that can operate jointly and think about co-production of weapons. While many attribute the two sides’ marvelous advance to common concern over the China threat, little has been said about how the China factor influences this bilateral military relationship. In addressing the latter issue, this paper proceeds at two levels: goal setting and strategic interaction. It is found that the U.S. and Vietnam have divergent goals in military cooperation though both having as key element the need to deal with China. However, it is the strategic interaction with China that determines when the U.S. is willing to move beyond routine and close the gap in goal setting between itself and Vietnam. This explains the evolution of U.S.-Vietnam military cooperation between 2010 and 2016.

美越關係;美中關係;戰略三角;軍事外交;武器禁運

U.S.-Vietnam Relations; U.S.-China Relations; Strategic Triangle; Defense Diplomacy; Arms Embargo