This is the argument that Bush & Rumsfiled have been touting in their current prop[oganda push
Observing the events of today—the hesitation and uncertainty, the stubborn clinging to the fantasy that the enemy can be appeased if we just keep talking and find the right diplomatic solution—I now feel that, for the first time, I really understand the leaders of the 1930s. Their illusion that Hitler could be appeased has always seemed, in historical hindsight, to be such a willful evasion of the facts that I have never grasped how it was possible for those men to deceive themselves. But I can now see how they clung to their evasions because they could not imagine anything worse than a return to the mass slaughter of the First World War. They wanted to believe that something, anything could prevent a return to war. What they refused to imagine is that, in trying to avoid the horrors of the previous war, they were allowing Hitler to unleash the much greater horrors of a new war.
But Iran is not Nazi Germany—a large, united, economically and technologically advanced nation that could nearly equal our military capability. Iran is a poor, backward nation with a large, restive dissident movement. Its military bluster is a hollow shell hiding its underlying weakness.