伊拉克和阿富汗干涉的代价远远高于所得，许多美国人对此后的外交参与感到失望，对于美国可以在海外取得怎样的成果感到怀疑。
Already turned off by foreign involvement in the wake of the Iraq and Afghanistan interventions, which cost much more than they achieved, many Americans are skeptical of what the US can accomplish abroad.