The US, he said, was attacked on September 11, 2001, so the war it is waging against Al Qaeda, the Taliban, and their associated forces is a just one. Referring to the key criteria set out in many discussions of traditional “just war” doctrine, he called it “a war waged proportionally, in last resort, and in self-defense.”
去年5月，在国防大学（National Defense University）的演讲中，奥巴马为美国使用无人机开脱。他说，2001年9月11日美国遭到了袭击，因此针对基地组织、塔利班以及它们的同谋势力的战争是一场正义战争。奥巴马援引确立于许多关于传统“正义战争”思想的讨论中的关键标准，称“这是一场合理的战争，是最后手段，也是自我防卫战争。”