1938: Neville Chamberlain signs the Munich agreement and 50+ million people die.
1967: Levi Eshkol launches a preemptive assault on 4 Arab nations and saves his country.
It is clear that in a choice between appeasement and victory there is no real choice to make at all. We can either put an end to the Iranian menace now or we can wait until they are on equal footing with us and the job becomes exponentially worse. For both sides. In the history books intentions are irrelevant, only results are remembered.