The missile program is another matter. Iran’s conventional warheads pose no imminent threat to the U.S., and their threat to U.S. bases and allies in the Gulf, which has become lethal since the start of this war, was only contingent before it. But, for Israel, their threat is tangible—and ongoing. Iran’s stockpiling of missiles portends wars of attrition, like the current one, in which each side tries to wear the other down.