后金融危机时代，奥巴马政府面临复杂多变的国际形势。2015年，奥巴马政府发布了新版《国家安全战略》报告，进一步清晰勾画出美国的对外战略蓝图。美国对外战略延续了以“奥巴马主义”为指导理念的外交取向，并在美古关系、伊核谈判、《跨太平洋伙伴关系协定》和气候变暖问题上取得了突破性的进展。然而，内外制约因素依旧牵制着未来美国对外战略的推进。在执政的最后一年，奥巴马政府不会就对外战略做出重大调整，而外交遗产情结将成为影响奥巴马政府对外政策的重要因素之一。
In face of complicated and changing international situation in the post era of financial crisis，the Obama administration released a new National Security Strategy of the United States in 2015，which sketch a more clear blueprint of American foreign strategy. Guided by the Obama Doctrine，the new foreign strategy continued its basic diplomatic orientation，achieving some breakthroughs on the US-Cuba relationship，Iran nuclear negotiation，TPP agreement and Climate change. However，the implementation of American foreign strategy would still be constrained by unfavorable factors at home and abroad in the future. There is few chance that the Obama administration could effect big changes concerning foreign strategy in its last year. Nevertheless，the personal complex of foreign policy legacy would be one of the most important factors that influence the foreign policy of the Obama administration.
