Known as the Powell Doctrine, its varied iterations posed several questions that needed to be answered affirmatively before the United States took military action: Is a vital national security interest threatened? Do we have a clear, attainable objective? Have the risks and costs been fully and frankly analyzed? Have all other nonviolent policy means been fully exhausted? Is there a plausible exit strategy to avoid endless entanglement? Have the consequences of our action been fully considered? Is the action supported by the American people? Do we have genuine broad international support?

