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Decker Eveleth

@dexeve.bsky.social
8.1K followers 431 following 950 posts

PRC and DPRK strategic forces analyst with CNA. BA Reed College, MA Middlebury Institute. NSF GRFP.

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Decker Eveleth @dexeve.bsky.social · 27/09/2026
I am in the middle of writing something that mentions, in passing, that the difficulty Iran has had affecting US military operations in the region with their missile forces means Iran may rely more heavily on terrorism to accomplish objectives. Well, looks like that's already here
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Decker Eveleth @dexeve.bsky.social · 21/09/2026
Having a lot of inside thoughts about the CASI news.
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Reposted by Decker Eveleth
Jeffrey Lewis @armscontrolwonk.bsky.social · 10/09/2026
+1. A lot of the construction of risk has to do with underlying priors about existential and catastrophic risk more so than the particularities of a given technology. That doesn’t mean the view is invalid; but it does imply one should interrogate those assumptions.
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Decker Eveleth @dexeve.bsky.social · 10/09/2026
The question we need to ask is how to minimize attack surface across the force. That might mean small autonomous vessels, that might mean distributed basing. US has been moving in this direction but not fast enough.
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Decker Eveleth @dexeve.bsky.social · 10/09/2026
The real problem is that the US reliance on centralized basing and large surface vessels presents a huge attack surface (quite literally) to the adversary. Given the scale of the threat and the limits on VLS tube space, "more bombs" only helps to an extent.
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Decker Eveleth @dexeve.bsky.social · 10/09/2026
In a China conflict for example US would be facing contested logistics and a much more sophisticated adversary with real joint strike options. US had it relatively easy with Iran, as their strike patterns were predictable and their missiles relatively unsophisticated.
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Decker Eveleth @dexeve.bsky.social · 10/09/2026
If the interceptor and munitions stockpile looks the way it does after a relatively brief conflict with Iran, a conflict in which logistics were mostly uncontested, then I dont think "more bombs" really solves our problems.
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Decker Eveleth @dexeve.bsky.social · 10/09/2026
There is a lot of very justified concern about the interceptor stockpile, but the solutions forwarded are really unconvincing. US must rethink our approach to force design more broadly. "More bombs deter more" doesn't cut it.
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Decker Eveleth @dexeve.bsky.social · 09/09/2026
I am tired of hearing about the impending arms race. horsdoeuvresofbattle.substack.com/p/i-am-tired...
horsdoeuvresofbattle.substack.com
I Am Tired of Hearing About the Impending Arms Race
Erin Dumbacher has written an article in Foreign Affairs titled “America Doesn’t Need More Nuclear Weapons.” Among its claims about how the United States does not need nuclear weapons is one particula...
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Decker Eveleth @dexeve.bsky.social · 02/09/2026
For instance, discussions of TNF that don't factor in how adversaries view conventional counterforce, entanglement, etc.
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Decker Eveleth @dexeve.bsky.social · 02/09/2026
But RU and PRC thinkers generally don't quite think like this - conventional level conflict has always been a major input factor for them on calculating "stability" in a way it hasn't been for US. This continues to, in my opinion, drive US mistreatment of the security environment.
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Decker Eveleth @dexeve.bsky.social · 02/09/2026
Its explicitly assumed in US definitions of "strategic stability." The conventional stuff doesn't factor, so why worry about it? Conventional stuff is the conventional warfighter's job.
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Decker Eveleth @dexeve.bsky.social · 02/09/2026
I'd argue that we in the United States have a tendency to do this especially (compared to RU and PRC) because our basic deterrence theory assumes that nuclear and conventional operations are effectively entirely distinct levels of conflict.
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Decker Eveleth @dexeve.bsky.social · 30/08/2026
Yes, its now very difficult to make assessments on which particular piece of tech they fear more if RU generals view the entire thing as one conventional/nuclear strike complex.
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Decker Eveleth @dexeve.bsky.social · 30/08/2026
My sense is that people still seem to think that Europe and Asia are going to snap awake at some point and dramatically change their approach to weapons basing, which is an argument one could have plausibly made in the Biden admin after 2021/22, and one you really can't make in the Trump admin.
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Decker Eveleth @dexeve.bsky.social · 30/08/2026
If you optimize for fear at the most extreme level, all you end up with is nuclear war.
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Decker Eveleth @dexeve.bsky.social · 30/08/2026
You are doing both - US force design optimizes for a certain level of instability. You want your forces to be threatening enough to cause the adversary to think twice, but not so destabalizingly threatening that it forces the adversary to think they need to act first. Kent/Thaler 1989 says this best
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Decker Eveleth @dexeve.bsky.social · 30/08/2026
Doesn't matter if its true (its not, in my opinion) what matters is that they strongly believe it.
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Decker Eveleth @dexeve.bsky.social · 30/08/2026
...and if that is your view, then a significant nuclear buildup in NATO looks an awful lot like US building options for sudden counterforce campaigns to quickly paralyze RU with conventional + LY weapons. Adding additional TNF makes this concern stronger, thus increasing first strike incentives.
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Decker Eveleth @dexeve.bsky.social · 30/08/2026
Difficult to answer briefly, but its a combination of capabilities, generation, and numbers. Keep in mind that RU generals I've read seem to view US TNF has a way US can augment conventional massed aerospace campaigns...
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Decker Eveleth @dexeve.bsky.social · 30/08/2026
The current era of warfare is defined by high speed of detection and targeting. Introducing theater nuclear forces produces different incentives than they did in the cold war becuase of these vulnerabilities, combined with conventional entanglement. Simply carrying over cold war assumptions won't do
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Decker Eveleth @dexeve.bsky.social · 30/08/2026
As I also said on the other site, the development of a land-based theater nuclear deterrent is defeated by geography in East Asia and in Europe is not only unnecessary, it likely simply increases Russian first strike incentives. Glance at what Gen. Karakayev has written and you'll see why.
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Decker Eveleth @dexeve.bsky.social · 30/08/2026
There is one additional wrinkle I'd highlight here, and that's the expenditure pressure that comes with exquisite live ISR. I suspect Maven's capabilities significantly increased expenditure by continually feeding targeters lists of dynamic targets to shoot at with whatever weapon they had on hand.
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Decker Eveleth @dexeve.bsky.social · 29/08/2026
We seem to be ignoring a whole host of employment and strategy discussions that could make what we have and what we are building stretch. Stop letting allies put their fire control systems on full auto. Stop shooting tomahawks at low priority fixed targets. etc. etc. etc.
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Decker Eveleth @dexeve.bsky.social · 29/08/2026
A lot of debate right now on the stockpile is very tiring. Yes, we should build more munitions, but that only solve issues to an extent. No, "do less war" isn't really a helpful comment unless you have some sort of plan to change the landscape of American politics.
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Decker Eveleth @dexeve.bsky.social · 25/08/2026
E) if C or D, why did the drones explode while not on a terminal attack path? That suggests a lack of safeties. Information is very limited, but if this is true, than multiple things were either not planned for or failed during the mission for this to occur.
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Decker Eveleth @dexeve.bsky.social · 25/08/2026
C) did they simply run out of fuel and fall out of the sky? D) or did these drones have an intentional "abort" system that makes them clobber in seemingly unpopulated areas, like Tomahawk?
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Decker Eveleth @dexeve.bsky.social · 25/08/2026
B) the possibility of something like this happening should have been brought up during mission planning. Colocation of nuclear facilities with your mission area is a big deal.
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Decker Eveleth @dexeve.bsky.social · 25/08/2026
This is very odd to me...its possible its true, but it raises a number of follow up questions: A) why were the drones loitering over an area 10km away, especially when that area is OBVIOUSLY a military facility?
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Decker Eveleth @dexeve.bsky.social · 25/08/2026
There will apparently be a pretty lengthy correspondence about it in the next issue.
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Decker Eveleth @dexeve.bsky.social · 25/08/2026
Mearsheimer's latest article reminds me of Japanese holdouts pillaging the Phillipines countryside in the 1960s. The paradigm wars are over man. You can go home.
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Decker Eveleth @dexeve.bsky.social · 23/08/2026
lol, Ferrari -automated tweet, sent every Sunday
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Decker Eveleth @dexeve.bsky.social · 22/08/2026
Very funny, and also probably true.
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Decker Eveleth @dexeve.bsky.social · 19/08/2026
The death of hyper-specific professional forums, where knife fights can be performed safely out of the public eye, has dragged a lot of inside-baseball fighting out into the open, and now such knife fights are performed in the pages of major magazines.
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Decker Eveleth @dexeve.bsky.social · 18/08/2026
Succeeded how? They succeeded by being a resilient regime. Id argue the cost imposition did not deter all military action, considering Trump back to war twice.
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Decker Eveleth @dexeve.bsky.social · 17/08/2026
Limits of airpower goes both ways. I don't think a lot of possible future US military action is going to sway Iranian leaders. I am also skeptical, given all the evidence of how the WH has worked through this so far, that further Iranian cost imposition will either.
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Decker Eveleth @dexeve.bsky.social · 17/08/2026
Will continued Iranian cost imposition campaigns actually compel US? I think its a little unlikely. If US leadership was that cost-sensitive I think we would have taken an off-ramp months ago.
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Decker Eveleth @dexeve.bsky.social · 17/08/2026
Iranian leadership on the other hand think that US scaled down operations because of successful Iranian cost imposition. A lot of US leaders do not share this view. In both cases, the costs the other are attempting to impose are not actually altering decision-making.
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Decker Eveleth @dexeve.bsky.social · 17/08/2026
My own sense is that US decision-makers largely believe that the reason why US has scaled down operations is because the tools US was using were not fit for the job, leading to a lack of results. Iranian regime is largely stable, and costs imposed were largely irrelevant to Iran.
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Decker Eveleth @dexeve.bsky.social · 17/08/2026
The reporting on decision-making calculus (and I use that word generously) in Iran and the US should reveal why a lot of materialist analysis has turned out to be wrong: we are still in conflict because US and Iran have fundamentally different views on what happened and why.
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Decker Eveleth @dexeve.bsky.social · 16/08/2026
A lot of discussion on carriers that would have made sense maybe five or six years ago.
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Decker Eveleth @dexeve.bsky.social · 16/08/2026
From Jane Nolan's Gaurdians of the Arsenal. I think this turned out to be wrong, in fact. Or at the very least, vastly overestimated how much the public actually cares.
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Decker Eveleth @dexeve.bsky.social · 15/08/2026
This is something I get frequently annoyed about - people forget that there is a reason why CENTCOM HQ is in Tampa. They knew this would happen, and all things considered, we should be pleasantly surprised at how well the bases did hold up.
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Decker Eveleth @dexeve.bsky.social · 26/07/2026
Signed by the author! And yes, its precisely what it sounds like.
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Decker Eveleth @dexeve.bsky.social · 25/07/2026
Scored one of my long sought afters at the bookstore for 10 bucks
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Decker Eveleth @dexeve.bsky.social · 25/07/2026
Having a great time at UChicago talking to AI folks about nuclear deterrence.
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Decker Eveleth @dexeve.bsky.social · 13/07/2026
My latest in Foreign Policy, arguing we are likely overreacting to China recent missile test: foreignpolicy.com/2026/07/13/c...
foreignpolicy.com
Stop Overreacting to China’s Missile Test
It was a milestone for Beijing’s nuclear forces—but not necessarily the provocation many analysts have made it out to be.
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Reposted by Decker Eveleth
Andrew Facini @andrewfacini.com · 15/06/2026
Oh man haha
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Decker Eveleth @dexeve.bsky.social · 15/06/2026
@andrewfacini.com do you have that "THE ITAR LOOMS" poster you photoshopped? I think it probably needs to be hung inside Anthropic HQ right now
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Decker Eveleth @dexeve.bsky.social · 15/06/2026
The obvious historical analog to this conflict is Beirut 1983, in which an American administration inserted itself into what the defenders considered an existential conflict but the administration was not willing to actually accept American casualties.
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