What Do They Expect?

From the London Times:

Israel stands ready to bomb Iran's nuclear sites

The Israeli military is preparing itself to launch a massive aerial assault on Iran's nuclear facilities within days of being given the go-ahead by its new government.


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“Israel wants to know that if its forces were given the green light they could strike at Iran in a matter of days, even hours. They are making preparations on every level for this eventuality. The message to Iran is that the threat is not just words,” one senior defence official told The Times.

When the heads of a nation call daily for the obliteration of its neighbor while it simultaneously develops nuclear capability, despite being awash with oil, is it unreasonable for the threatened neighbor to take proactive measures?