Mr Obama has long qualified his promises to leave Iraq, conceding that soldiers may either be forced to stay (for example to fight against terrorists) or to return to prevent any incipient genocide.

• 奥巴马自己也认同的是，美国士兵可能要么会被迫留下来（比如反恐），要么回到伊拉克以防止任何早期的种族屠杀发生，（如此一来）他已经为自己的承诺加上了一些限制。