ARLINGTON, VIRGINIA - JULY 18: U.S. Defense Secretary Pete Hegseth (2nd R) speaks to reporters while meeting with Israeli Defense Minister Israel Katz at the Pentagon on July 18, 2025 in Arlington, Virginia. This is ... ARLINGTON, VIRGINIA - JULY 18: U.S. Defense Secretary Pete Hegseth (2nd R) speaks to reporters while meeting with Israeli Defense Minister Israel Katz at the Pentagon on July 18, 2025 in Arlington, Virginia. This is Katz's first official visit to the United States and the counterparts will discuss shared defense priorities, including Iran’s threat posture and the ongoing war in Gaza. (Photo by Chip Somodevilla/Getty Images) MORE LESS

Sometimes I write a post where I don’t know the topic well enough to discuss it expertly but I understand it enough to point to the outlines of the debate and where to find more information. This is one of those posts. Here, I want to discuss drones and missiles deployed by Iran and the expensive, high-tech weapons the U.S. and its allies use to shoot them down. This applies right now in the Persian Gulf where Iran is using a strategy of “asymmetric attrition.” But it would apply in even more complicated and hard-to-address ways if and when the U.S. got into a major conflict with, say, China over Taiwan. It’s that basic challenge of asymmetric warfare for a Great Power like the United States: the U.S. relies on often quite effective but very expensive and hard to replace weaponry. Iran’s clunky but effective drones cost in the low five-figures to produce, while U.S. missile defense tech can costs millions for a single shot.

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