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Joe Cirincione's avatar

Let me abuse the comment section for an addendum to my article. A friend just wrote me:

"Are the Israeli Iron Dome and our anti-missile systems in Ukraine effective and how do they affect your argument? And your argument that anti-missile defense development encourages more offensive missile development seems undermined by the development of hyper speed missiles by us, Russia, China, and N. Korea. As you point out the current investments in anti-missile defense have produced bupkis, yet the hyper speed offensive missiles are proceeding rapidly towards deployment."

I answered:

Great points. As I briefly note in the article, defenses against short-range missiles makes sense. We can hit this weapons because they are slow, fat and hot. But intercepting long-range weapons means hitting warheads in space, where they are fast, small and cold. We have not been able to solve the technological problem of seeing them, distinguishing them from decoys, chaff and jammers, and hitting them consistently.

The surge of interest in hyper-velocity missiles is part of the defense-offense competition. All ICBMs are hypervelocity. That is, they move at many times the speed of sound. It is part of what makes them so hard to hit. As defenses against short-range missile have proven effective, militaries want to increase their speed. Most of the hypervelocity weapons under development are for regional conflicts where they'd be launch from relatively short- or medium-range. It illustrates the main strategic point: deployment of defenses (that either work or are perceived to work) promotes an arms race with newer and more offensive weapons.

I thought some of you would be interested in this exchange. Thanks for reading!

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Jon Wolfsthal's avatar

Joe, this is outstanding and your contributions on Substack will benefit a lot of people. Keep up the great work!

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