10
June 2025
Past Event
Adapting the US Nuclear Posture in Response to Adversary Threats

Event will also air live on this page.

 

 

Inquiries: [email protected].

Adapting the US Nuclear Posture in Response to Adversary Threats

Past Event
华体会
June 10, 2025
Share:
DVIDS
Caption
Two US Air Force B-52 Stratofortresses fly in formation over the US Central Command area of responsibility on February 20, 2025. (US Air Force photo)
10
June 2025
Past Event

Event will also air live on this page.

 

 

Inquiries: [email protected].

Speakers:
AL
Dr. Austin Long

Deputy Director for Strategic Stability, Joint Chiefs of Staff, Directorate for Strategy, Plans, and Policy (J5)

GW
Greg Weaver

Principal, Strategy to Plans LLC

Moderator:
heinrichs
Rebeccah L. Heinrichs

Senior Fellow and Director, Keystone Defense Initiative

The United States will soon face two nuclear peer adversaries: the People鈥檚 Republic of China and the Russian Federation. But Washington designed its current nuclear modernization plan for a more benign threat environment with just one nuclear peer.

Join Senior Fellow Dr. Rebeccah L. Heinrichs, the director of Hudson鈥檚 Keystone Defense Initiative, for a discussion with Dr. Austin Long and Mr. Greg Weaver on ways the US can increase the credibility of its nuclear deterrent in a dangerous new era.

Event Transcript

This transcription is automatically generated and edited lightly for accuracy. Please excuse any errors.

Rebecca Heinrichs:

Good morning. My name is Rebecca Heinrichs and I am happy to welcome you to 华体会, for those of you who are joining in person and those of you who are joining us online. Thank you for your patience. I鈥檓 sure it鈥檒l be worth the wait. We have two great guests here today to talk about a critically important topic. We have Greg Weaver, he鈥檚 the Principal of Strategy to Plans LLC. Prior to this, he was the Deputy Director for Strategic Stability for the Joint Staff J5 strategy plans and the policy directorate. And then next to him, is the guy who has that job now, Dr. Austin Long. And so it鈥檚 just a real privilege to have Greg Weaver and the new Greg Weaver or the old.

Dr. Austin Long:

Soon to be the old Greg Weaver. Yeah.

Rebecca Heinrichs:

I know. So just a real privilege. Dear friends of mine who I admire their work a great deal and so it鈥檚 just a privilege to have them here today. Today we鈥檙e going to talk about deterrence, what the United States should do to adapt potentially our nuclear posture or potentially get different mixes of weapon systems, etc. And potentially think about how to do this a little bit differently in order to maintain the peace, and credibly deter increasingly aggressive adversaries.

And so I have for you, I printed out and stuck over there. If you haven鈥檛 picked it up, I just would commend this to you to pick it up on your way out, because I鈥檓 going to refer to this quite a bit today. There鈥檚 two essays in here, one from each of these gentlemen. And so we鈥檙e going to be talking quite a bit about what they鈥檝e detailed in these really great essays. The editor of course, is Dr. Brad Roberts. And so I鈥檓 going to turn it over to you, Greg first.

Greg Weaver:

Okay.

Rebecca Heinrichs:

And if you could just spend a few minutes outlining to us how we should think about this and then turn it over to Austin.

Greg Weaver:

Yeah, thanks Rebecca and thanks for inviting me and thanks for putting me on stage with Austin in one of his last weeks. So I鈥檓 going to start by saying that I think the Strategic Posture Commission report is probably the best single unclassified characterization of the future to peer threat environment that鈥檚 out there unclassified. And I鈥檓 not going to go heavily into the threat, I鈥檓 going to talk about what I think we need to do about it. I鈥檓 happy to answer any questions about the threat. But the Posture Commission said after doing a really deep and classified dive on the threat, was that the program of record for U.S. nuclear modernization, both strategic and theater, was necessary but not sufficient. And that U.S. nuclear forces were going to have to either be bigger or different or both in the future. And that was the language we could get everybody on the Posture Commission to agree to.

But I鈥檓 going to tell you briefly today why I think the answer is both. It鈥檚 not just bigger and it鈥檚 not just different, it鈥檚 bigger and different. And in doing that, I鈥檓 going to divide my comments first, between what I think the implications of the coming threat environment are for U.S. strategic nuclear forces and why, and then for theater nuclear forces and why. So let me start with strategic forces. The bottom line is that the coming two-peer threat requires that we increase the size of our strategic nuclear forces if we鈥檙e going to continue to rely on the nuclear strategy that I think has prevented both nuclear war and major power war between nuclear armed adversaries since the advent of nuclear weapons. And that enduring U.S. nuclear strategy includes at its heart, so-called counterforce targeting of adversary military forces, including what I鈥檓 going to refer to as comprehensive counterforce targeting of the adversary鈥檚 nuclear forces and their associated command and control.

And the reason I鈥檓 referring to it as comprehensive, is what I mean by that is, it鈥檚 basically holding at risk every element of the adversary strategic nuclear forces that we can hold at risk, either that we can find and that we can put weapons on. So the bottom line is, that the current U.S. strategic nuclear force and the force that the program of record of strategic force modernization will field if we leave it untouched, if we leave it unchanged, is going to be too small to hold the strategic nuclear force of both Russia and China at risk simultaneously by in the mid-thirties when the Chinese reach something close to quantitative parity.

So we鈥檙e going to need a somewhat larger force if we want to continue to have that comprehensive counterforce targeting as a key element of our strategy. We鈥檙e going to have to have a somewhat larger force to enable that strategy than what is currently planned. But the size of that strategic force is nothing close to Russian and Chinese nuclear forces added together, because the targeting solution isn鈥檛 the same as the total force. And we can talk about that if anybody wants to.

So some in the nuclear policy and, what do we want to call it? Disarmament community, have argued that we should abandon counterforce targeting, abandon that element of our strategy. But here, I鈥檓 going to explain briefly and it鈥檚 detailed in the article Rebecca talked about, I鈥檓 going to explain briefly why I think that would be a dangerous mistake to abandon that element of the strategy. And the bottom line there is that U.S. counterforce strategy enhances deterrence and provides escalation management and morally necessary damage limitation capability if deterrents should fail at any level of violence.

So let me first talk about the deterrence aspect, contributions of counterforce targeting. So reason the U.S. historically targeted adversary strategic nuclear forces, was because they were assessed to be among the assets adversary leaderships valued most, particularly the Soviet leadership. And whether this is true today, and in my mind is an intelligence question, it鈥檚 really not... You can talk about it publicly, but unless you have access to the actual intelligence regarding adversary leadership perceptions of the value of their strategic forces, you can talk all you want, but from a strategy perspective, it鈥檚 really an intelligence informed question.

But even if the intelligence community judged that our adversaries didn鈥檛 highly value their strategic nuclear forces, there are I think other deterrence contributions that U.S. comprehensive counterforce targeting make that are critically important, even if it鈥檚 not one of the things they value most. And that鈥檚 because I believe the U.S. option to conduct a comprehensive counterforce strike in extremis at the height of a really tense large-scale conflict with a nuclear armed adversary, to so-called go big first in that situation, has a significant effect on an adversary鈥檚 perception of how escalation might unfold if they initiate a conflict, and an effect that it is our net interest to create and to sustain. So our nuclear strategy depends in part on convincing an adversary that a war might escalate out of control if they initiate limited nuclear escalation.

But there鈥檚 a really important thing to understand about that element of our strategy. We do this by making clear that the U.S. is willing to risk uncontrolled escalation in defense of its vital interest, not cause uncontrolled escalation to an all-out counter value nuclear exchange. Fielding U.S. nuclear forces capable of limiting damage in extremis then, I believe makes the U.S. will to risk such a escalation more credible, because we have damage limitation capability. The fact that U.S. strategic nuclear counterforce options exist casts a long shadow over an adversary鈥檚 escalation calculus at lower levels of violence, and instills additional caution in that calculus that would not exist if that option didn鈥檛 exist for the president of the United States.

Now let me talk briefly about the escalation management aspects of this part of our strategy. So if a state has nuclear forces that are sized and postured to ensure it can conduct both a large-scale counterforce attack in response to a preemptive counterforce strike and retain sufficient survivable forces to deter the adversary from counter escalating against American civil society and economic infrastructure, I think that creates two possibilities. The first, is that the existence of such a large-scale counterforce response option backed by a survivable reserve force may well deter the adversary from initiating a preemptive counterforce attack in the first place, as doing so would result in no real discernible advantage to the adversary and run gigantic risks of catastrophic damage. The bottom line is that a large scale counterforce response option backed by a survivable reserve force creates an additional bulwark or firebreak against the ultimate catastrophe of an existential level nuclear exchange. And that鈥檚 the second reason, right?

The second reason, is even if the war did escalate, the two sides might terminate the nuclear war after a large scale counterforce exchange without either resorting to the final option of imposing existential damage on the other side and committing suicide in the process, because at that point it would be suicide to do that. So one of the main reasons I think going away from this element of our strategy is a bad idea, is because if the president doesn鈥檛 have the option to launch such a strategic counterforce strike, the adversary will fear the potential consequences of initiating limited escalation less, because they will perceive a lower likelihood of the war escalating out of control to higher levels. So we should, I believe, increase the size of our strategic nuclear forces in a manner to ensure the president has that option against both Russia and China simultaneously, preferably without having to rely on launch under attack to do so. And that鈥檚 a force structuring issue.

So now let me briefly talk about the theater side of the equation and it鈥檚 no less important. In fact, it might even be more important, but I left it for a second. In my view, it鈥檚 the theater side that requires that we have both more and different forces than we have today. And that鈥檚 because deterring or countering adversary-limited nuclear escalation is both critical to deterring war and escalation in war. And it poses the greatest risk of deterrence failure, potential military defeat for the United States and our allies, and possibly the global catastrophe of a large-scale nuclear war. So first, let me talk about why I think our theater forces need to be bigger.

We need larger theater nuclear forces in both theaters, Europe and Asia to counter Russia and China and North Korea. NATO theater nuclear forces, which are really provided by the United States are outnumbered roughly 10 to one today in Europe against the Russians. And we have no theater nuclear forces whatsoever in the Asian theater, despite the theater buildups that are ongoing by both China and North Korea and Russia too actually, in Asia. Reliance on the purported but never demonstrated capability to swing U.S. dual-capable fighter aircraft from the European theater to the Asian theater in the event of a conflict there, was a bad idea in a one-peer environment, and I think is dangerously inadequate in a two-peer environment. Given Russian nuclear doctrine today and the likely direction of Chinese nuclear doctrine development, I believe the U.S. needs to be-

Greg Weaver:

... action of Chinese nuclear doctrine development. I believe the U.S. needs to be able to convince our adversaries that we鈥檙e prepared to wage extended theater nuclear conflict if necessary, And this requires fielding forces in both theaters that are structurally designed for that kind of a conflict, and sized to ensure that there鈥檚 no obvious point in such a conflict where we will run out of operationally relevant limited options before they do. That doesn鈥檛 mean we have to have as many weapons as them, but it means you can鈥檛 have just a few.

And then second and last, the forced design part of the theater problem. I think the U.S. theater nuclear forces in both theaters need to have all the necessary attributes to deter adversary limited nuclear escalation, and to counter the effects of adversary limited nuclear use on the outcome of a conflict if deterrence does fail. This requires attributes our current theater force doesn鈥檛 have. The required force, I believe, has to have the following attributes. It needs improved survivability without lengthy force generation timelines. It needs to be continuously forward-deployed in both theaters. It needs to be deliverable on what I call operationally relevant timelines, and I鈥檓 happy to explain what I mean by that later. It needs to have a range of, both explosive yields and fusing options to cover the necessary targets in an effective way. It needs to be highly likely to penetrate any adversary defenses that it has to get through to get to those targets. It needs to have sufficient range to hold at risk all the necessary targets. And it needs to have extended endurance and durability once generated, it can鈥檛 be on a short operational timeline once you generate it to alert.

So in a recent analysis that I wrote that the Atlanta Council published, I laid out the deterrence and war fighting requirements for these theater nuclear force attributes in a lot more detail than I just did here. So if you want to know more, I鈥檇 recommend you look at that. And I ended up recommending that we field forces in Europe and Asia that include dual-capable aircraft with gravity bombs and new standoff weapons. Slick a man on attack submarines, and ground launch ballistic or cruise missiles with intermediate range.

So let me conclude by saying that these are what I think our theater nuclear forces need to look like in the 2030s, if we and our allies also take steps to ensure conventional military superiority in both theaters at the same time. It鈥檚 what we need, the force I鈥檓 described, to deter defeat adversary escalation when we start winning the conventional campaign, and the adversary decides that he鈥檚 not willing to be defeated feed, right? But the Posture Commission noted, and I agree with this, that if we don鈥檛 maintain conventional superiority with our allies in both theaters, and it鈥檚 not at all clear to me will or even can, then we鈥檒l have to consider once again relying on nuclear weapons to compensate for conventional inferiority in a second a second theater conflict. And the theater nuclear force requirement for a force capable of doing that is, I believe, likely larger and different than the one I鈥檓 advocating, which is larger and different than the one we have and the one we plan. That鈥檚 it. Thanks.

Rebecca Heinrichs:

Dr. Long, you鈥檙e in a seat right now. It sounds like Greg just laid out a scenario where we really are not in a great place versus what our adversaries are doing. Can you give us your assessment of what we should do, and how we are versus especially. I think, you can talk a little bit if you want to differentiate between the Russia threat and the China threat and how you see things right now?~

Dr. Long:

Sure. Thanks very much. Let me say at the outset, at least for the remainder of this month, I鈥檓 employed by the U.S. government, but I鈥檓 not here speaking for the United States government, the Department of Defense, the joint staff, or anybody else. I will say at the outset, I broadly agree with everything Greg said, both in terms of the kind of forces that are needed and also the logic for why we need them. I鈥檓 happy to talk more about potential areas of difference if you want to pick at both of us. But in general, I think the strategic Posture Commission鈥檚 assessment of necessary but not sufficient, was spot on in both strategic and theater and nuclear weapons as Greg just talked to.

The question is what is to be done? As Rebecca said, our ability to expand and diversify our nuclear forces is more limited than we might hope. We did not invest in our nuclear infrastructure, that is to say really the defense industrial base that produces both delivery platforms largely, but also the infrastructure that produces nuclear weapons themselves, really since the end of the Cold War, at least not in a very significant way. So we鈥檙e in the process of trying even as we need modernized, expanded, and diversified forces that Greg talked about, we鈥檙e trying to rebuild the infrastructure that enables us to build those. So that鈥檚 both on the Department of Defense industrial base side and the Department of Energy national Nuclear Security Administration side. However, there is a lot we can still do in terms of expanding the size of the strategic force, and to some extent expanding the regional forces.

I want to talk for just a minute about, before I go into specifics, a little bit more of the philosophical underpinning for why we need to do this, which is in the essay that Rebecca provided, and I think aligns with what Greg said. Damage limitation, this idea that even in a large scale nuclear exchange, you have to do the very best you can to limit the damage that鈥檚 inflicted on the United States and its allies, has been critical to our strategy for a long time, principally but not exclusively, for moral reasons as Greg said, but also for strategic reasons. And as Greg said, it makes the U.S. threat that in extreme circumstances we will use nuclear weapons to defend our vital national interests and those of our allies more credible. It鈥檚 really hard to make credible the idea that you will commit suicide in defense of far-flung deterrence commitments, right? You can do it, but it鈥檚 really hard.

Policy makers are not comfortable with it for obvious reasons, our allies are often not comfortable with it, and it鈥檚 not clear in all cases, our adversaries believe it. So the idea that in this competition and risk-taking that Greg talked about, which is really what nuclear escalation is about, the ability to limit meaningfully damage to the United States and its allies makes that willingness to run risks seem more credible. And it gets very Dr. Strangelove very quickly, so if you haven鈥檛 seen that movie, you need to run out and watch it.

Speaker 1:

It does.

Dr. Long:

But the idea that the United States and its allies will survive as societies, and our adversaries should they choose to prosecute the war to its ultimate will cease to exist, means you鈥檙e essentially playing a game of chicken, which I understand is a great Tom Schelling analogy, but probably requires explanation to people under the age of about 50. In ye olden days, kids used to race cars at one another to see who would 鈥渃hicken out鈥� first and be the first to swerve. Tom Schelling, one of the early nuclear theorists sort of made this as an analogy. I think it鈥檚 a posit, but I think what damage limitation capabilities do, is essentially to mean yes, you鈥檙e playing a game of chicken, but one of you is driving a very large semi-truck and one of you is driving a Prius. And so if there鈥檚 a collision between the two, it鈥檒l be an absolute catastrophe for both, but it鈥檚 probably survivable, albeit in a mess for one of them, and it is not survivable for the other.

Speaker 1:

One has airbags.

Dr. Long:

One has airbags, but said airbags may not be sufficient in that condition. So I鈥檓 happy to talk more on that about Q&A, but that鈥檚 the sort of, I think, central logic for why we鈥檝e pursued the kind of capabilities that enable damage limitation. And I鈥檒l just say damage limitation capabilities, as Greg alluded to, are not just about nuclear weapons that can hold targets at risk. It鈥檚 the ability, as Greg mentioned, to find targets. And here I鈥檒l just note that it is never easy to find competent adversaries targets they want to hide, but the United States has spent a long time doing just that. So in the early days it was alleged to be very hard to find Soviet air bases and missile silos, the United States developed overhead imagery of a variety of kinds to do that. Then it was alleged to be really hard to find ballistic missile submarines on the water, which it was. But the United States Navy developed really robust capabilities to do that during the Cold War, et cetera, et cetera. So you have to invest in not just the nuclear forces, but also some of these underlying command and control and intelligence capabilities. Again, happy to talk more about that in Q&A.

So what is it you need to do to do all of this? One, as Greg said, you need a larger deliverable stockpile of strategic weapons that you can deploy. But you don鈥檛 necessarily need a vastly larger number of launchers, right? You don鈥檛 need one warhead for every warhead that the Russians and the Chinese and the North Koreans have combined. You probably do need at least one warhead for every target they present that is a nuclear threat. So here, if you鈥檙e talking about the contemporary strategic environment, the transformation of China鈥檚 nuclear arsenal stands out as probably the most significant as you can read about in the newspapers. China has built dozens if not hundreds of missile silos to contain intercontinental ballistic missiles. That is just a growth and what you have to hold at risk as part of a damage limitation strategy. They鈥檙e building out other parts of their forces that you鈥檒l then have to account for.

So the point is the United States, if you want to continue pursuing this nuclear strategy, needs a larger deployed strategic force than the New START treaty allows, the New START treaty expires next year. Whether or not there will be a replacement is currently unclear. But I would argue to continue pursuing this strategy, the follow-on treaty has to account for this by limits that are large enough to enable the U.S. to continue pursuing this strategy. That is unlikely to be, say, triple the New START force, but is likely to be significantly larger. One of our colleagues, Frank Miller, has suggested it鈥檚 larger by hundreds of warheads, but probably not many thousands.

Can the United States do that in the straits that we find ourselves with our industrial base and our nuclear infrastructure? The answer is yes, because we have what I鈥檒l call the Cold War inheritance. We built a lot of stuff during the Cold War, much of which we鈥檝e dismantled, but it can be reassembled or we have things that are in storage, et cetera. Once outside of the restrictions of New START, we converted a number of systems including ballistic missile tubes and bombers to not be able to deliver nuclear weapons, we can reverse those relatively quickly. I won鈥檛 say quickly, we don鈥檛 do anything quickly it seems these days, but relatively quickly. And so there鈥檚 the potential for what is referred to as upload in the relatively near term.

I agree with Greg, and I鈥檒l conclude here in just a minute, that the regional forces probably require somewhat more work. But one area where I think we should consider what we want to do, given where we are in the program, is with the land leg of the ICBM. So we are proceeding with the modernization of each of the legs of the triad, as many of you that follow this, know the Sentinel program has undergone a Nunn-McCurdy breach, which means it鈥檚 both delayed and more expensive. I think there are opportunities there to think about what kind of ICBM force we want for where essentially the remainder of the century. And I will just note we operated at least two types of ICBM for most of the Cold War. At the end of the Cold War, it was Minuteman III, which we still have and the much larger and more capable Peacekeeper, which we don鈥檛 have. We might want to consider whether we need to pursue a larger and more capable weapon as sort of a follow-on to Sentinel rather than pursuing a large number of Sentinel weapons. And again, we can talk more about that in Q&A. We probably will need to acquire more ballistic missile submarines as well, given where our industrial base is, that will be a ...

Dr. Long:

... submarines as well. Given where our industrial base is, that will be a long time coming, whereas investing in some more of the land leg is perhaps a shorter, albeit not short way to get more of that capability. In regional capabilities, I would commend to you Greg鈥檚 piece for the Atlantic Council. I think it largely hits the nail on the head that we don鈥檛 need to match the Russians who have probably thousands of theater weapons, but we need sufficient for our strategy and that requires some capability in both theaters, probably some capability with a diversity of attributes, many of which Greg mentioned. That provides the vital linkage between early escalation, which might take place some distance into a conventional war but probably doesn鈥檛 involve very large scale use of nuclear weapons. You give the president options to respond in a limited fashion. But importantly, that damage limitation capability casts a shadow over that escalation and ideally will make the adversary reluctant to cross that threshold given the asymmetric risks we鈥檙e going to run in that potential for escalation. So, look forward to discussion in Q&A. Thanks very much.

Rebecca Heinrichs:

That was great both of you. Really well done. There鈥檚 a couple of big points that I just want to make sure after hearing all of that, especially if there are people... Most people who tune into these events, this is not the first time you鈥檝e heard these arguments, but for those of you have, you might be maybe horrified by what you just heard, but I want to get the logic really clear and really solid here. The adversaries are increasing. Let鈥檚 take China, as you mentioned, Austin. The adversary is significantly increasing the number of their own nuclear weapons, both delivery systems and warheads. That is what is driving this consideration of what the United States may have to do in order to preserve the peace and convince our adversary that they鈥檙e not going to succeed in doing whatever aggressive, revanchist aim they might have that the United States has a credible deterrent that can convince them not to do that. Okay. Right?

Dr. Long:

Yes.

Rebecca Heinrichs:

That鈥檚 driving it. And then I want to get the definition right on damage limitation. I think this is so important. Let鈥檚 see, you defined it for us here, Austin, on page 67 of the packet. Damage limitation is defined as the ability to deny an adversary the ability to inflict unacceptable damage as defined by the adversary. Okay. So, what you鈥檙e saying is you want to be able to make sure that you can convince the adversary that at any degree he wants to escalate, you still have the ability to impose a cost on him regardless of what he might take out of your forces. Is that accurate?

Dr. Long:

That鈥檚 right, but I鈥檇 say more than that. If you look, and I鈥檓 informed very much by what we now know about the Cold War, this idea of unacceptable damage can be very abstract. How do you measure damage that鈥檚 unacceptable? Adversary military planners have to make it concrete, and by the way, military planners in the United States do as well. So, you have to think about targets, you have to think about weapon application. And so, just to give an example, we now understand that during the late Cold War, the Soviet standard for inflicting unacceptable damage on the United States was the ability to hold essentially 200 targets at risk. And by the late-1980s, they believe the United States could deny them that ability to hold 200 targets at risk.

Does that mean they were therefore deterred? No. Deterrence is more complicated than that, but it does mean that if then premier of the Soviet Union turned to his general staff and said, 鈥淐an we inflict unacceptable damage and retaliation against the Americans?鈥� The general staff would鈥檝e said, 鈥淣ot as we assess it, sir.鈥� So, I think that cast weight on the adversary of the kind that I talked about where yes, we鈥檙e both running risks, yes, escalation to large-scale nuclear exchange would be catastrophic for both sides, but it would not be unacceptable in the view of the Soviets to the Americans. Whether they鈥檙e right or wrong is a different question and therefore they had to think very carefully about the possibility of escalation.

Rebecca Heinrichs:

All right, so this is really for both of you, but I鈥檓 going to give Greg an opportunity to answer it first. What about those who say it鈥檚 too... With what the adversaries have, mobile systems, we cannot be confident that we can take out some of these systems that they have doing damage limitation. And so therefore, this idea that counterforce targeting and a damage limitation strategy is not, not only is it not necessary, but it鈥檚 just really hard to do and we鈥檝e just made it. We sort of make it too easy and so we can do it in other ways. How would you respond to that?

Greg Weaver:

Well, it is hard to find things as Austin said, that the adversary is trying to hide. We鈥檙e not perfect at it, but we鈥檝e done it in the past. I鈥檓 going to go a little beyond your question and then come back to it because I think this is really important and it touches on how Austin defined it and talked about what unacceptable damage really means. This is a very hard topic to think about. Thinking about tens to hundreds of millions of casualties happening in less than a month or a month and a half is a horrific prospect. But throughout the history of human conflict, leaders change their views of what鈥檚 acceptable over the course of conflicts. Things that they never would鈥檝e deemed acceptable at the outset, like the casualty levels in the World War I on the western front, nobody in Europe would鈥檝e entered World War I thinking that that was what was going to happen, but they didn鈥檛 stop for years.

They kept doing it even though they weren鈥檛 making any progress because they didn鈥檛 see that they had any other alternative once they found themselves in that situation. I鈥檓 not trying to draw a analog between the scale of violence in World War I and nuclear war because they鈥檙e not the same. What I鈥檓 saying is that in extremists, and that鈥檚 why I use that term, an adversary is going to try to figure out, well, what is the American president willing to do? And if he presents the American president with the choice between losing 20 to 30 million American casualties if he decides to go first or taking 170 million casualties, if he doesn鈥檛 and the American president believes he鈥檚 going to take 170 if he doesn鈥檛, the unimaginable choice of conducting a strike that would potentially in response result in 20 million American dead. It actually becomes the obvious choice if you are sure that you are going to incur 170 million if you don鈥檛 and you won鈥檛 be totally sure.

So, what I wanted to get across is that we don鈥檛 have the luxury of using peacetime, thinking about what choices leaders will face in this kind of horrible situation. We have to think about the real choices they might face and adversaries have to think about the real choices our leaders might face if they present us with certain kinds of threats. The reason I emphasized, one reason we鈥檝e always had comprehensive strategic counter forces in our strategy is because in the past, American presidents have looked at strategy changes that would鈥檝e foregone that option. And every one of them has said, 鈥淣o, I have a moral obligation that if the worst thing happens, I need to be able to limit damage to the extent I can. I鈥檓 not going to purposely forego that option, even though I鈥檓 not going to find all the targets. I won鈥檛 get all those forces. I can get a lot of them.鈥�

And the other factor in an adversary鈥檚 decision calculus in this horrible, extremist situation is that they don鈥檛 know what they don鈥檛 know about American capabilities. And the United States has revealed either through use, usually through use, not through demonstration, capabilities that adversaries didn鈥檛 know we had in the past in conflicts, and they鈥檝e been surprised by what we were able to do. And given the technical sophistication of the U.S. intelligence community, for example, the detection, and the Russians lived this dream, the detection of the Russian violation of the INF Treaty, which I can鈥檛 go into how we detected that, but they were surprised that we were able to determine that they were cheating and they couldn鈥檛 figure out how we did it and they still don鈥檛 know how we did it.

I think an adversary leadership needs to be pretty cautious about what they don鈥檛 know about U.S. capabilities. You might say, well, if we had that capability, we would reveal it to enhance deterrence. Well, not if the way you have it is easily countered if they know about it, but if they don鈥檛 know about it, they aren鈥檛 countering it. You don鈥檛 have to have perfect comprehensive counterforce to have the kinds of strategic effects that we鈥檝e both talked about here today. How much is enough? Well, that鈥檚 not really definable quantitatively, but between the fact that the definition of unacceptable damage can change over time for leaderships in conflict and the fact that we might be better than the adversary thinks we are, I think the deterrent effect and the escalation management effect and the shadow casting effect of that counterforce capability is pretty powerful. I think we would be very unwise to forego it on the assumption that somehow threatening an adversary... As James Acton has said, 鈥淲ell, we should just threaten their conventional forces and their defense industrial base, and that鈥檚 enough to deter them.鈥� It might be, but why take that risk?

Dr. Long:

Can I just-

Rebecca Heinrichs:

Yeah, please.

Dr. Long:

... add? So, just one concrete example of the kind of revelation to an adversary, which was unintentional. As I mentioned during the Cold War, it was generally believed nuclear-propelled, nuclear armed ballistic missile submarines on both sides were essentially invulnerable, couldn鈥檛 be found, couldn鈥檛 be attacked. It turned out that was anything but true, particularly in the 1960s. Soviet submarines had relatively short-range missiles. They had to come out into the Atlantic and the Navy picked them up when they passed through the so-called Greenland-Iceland-United Kingdom Gap, this geographic barrier. And we were able to follow them pretty much at will. They could not do the same to us.

The Soviets were blissfully unaware of this until we had one of their biggest intelligence successes, which was the so-called Walker spy ring, where they learned how good we were and it caused them to turn themselves inside out trying to get better. They improved in some ways, but the point is they thought they were invulnerable and suddenly, almost overnight they found out they weren鈥檛. I think adversaries have to respect the U.S. ability to do that. Now, there鈥檚 a counter. Could that ever happen to us? Certainly. But again, we鈥檝e spent a lot of time preparing for that eventuality, again, knowing what we鈥檝e been able to do to others. So, I think that鈥檚 an important-

Dr. Long:

... to others. So I think that鈥檚 kind of an important empirical example of what Greg was talking.

Rebecca Heinrichs:

Real quick. I did my doctoral thesis on why we do targeting this way, why we do our deterrence strategy too for counterforce and it鈥檚 moral implications, it鈥檚 called duty to deter. I explained in there why it鈥檚 important, not just for the damage limitation, but also why the guys and gals who are operating our system should be confident that if they are required to actually carry out an attack, that they are confident that they are in line with the just war doctrine, the laws of armed conflict and we hit what the adversary values and those things are military targets as well. They鈥檙e not cities. We no longer target cities as such. And so there鈥檚 important moral reasons we do that and also just credibility of the deterrent, assurance, et cetera as well.

Dr. Long:

It鈥檚 also illegal.

Rebecca Heinrichs:

Well, I said it. So it鈥檚 a moral, it鈥檚 also a legal issue, but it鈥檚 legal because we derive our legal parameters from moral principles. So I wanted to talk about, okay, so right now the Trump administration is thinking about looking at a reassessment of US, of our conventional force posture in Europe. In particular really concerned about the China threat. And so I鈥檓 going to turn to you, Austin, about this too.

So we鈥檙e still going to be doing extended deterrents though, aren鈥檛 we on the nuclear front? And all of this still applies and if you can just talk about anything you can, understanding that you do not speak on behalf of the US government and the Joint Staff, but anything you can talk about just why this is still incredibly relevant and timely for what this administration intends to do.

Dr. Long:

Sure. I think it鈥檚 very clear the United States continues to extend extended deterrents to our allies. The Secretary actually spoke and he said he was sort of surprised himself, but the Europeans have responded to this demand signal for greater burden sharing, particularly on the conventional side. So as adversaries have become more threatening in the European theater, President, Secretary have said, you guys need to stand up more in your own defense, and they are.

The part that the United States continues to carry is this nuclear burden, I will say alongside France and the United Kingdom as independent centers of decision-making in NATO鈥檚 nuclear forces. But NATO has said for a long time, the supreme guarantor of the alliance is US strategic forces for the reasons that Greg and I sort of articulated. So I see, again, given that the Europeans have responded to the President鈥檚 demand for greater burden sharing, I think it鈥檒l continue there.

And I think it鈥檚 obviously true in the Indo-Pacific as well, that we don鈥檛 have the same kind of well articulated nuclear strategy and posture in the Indo-Pacific we鈥檝e had for decades in Europe. So that probably requires more, that is to say the INDOPACOM theater probably requires more thinking, not just in terms of capabilities, but how we do planning, how we interact with allies. I mean, we had nuclear weapons for a long time on the Korean Peninsula, but that was sort of a very different context and hasn鈥檛 been true for nearly 35 years. So a lot needs to go into thinking about what our posture needs to be, what our capabilities need to be, and how all of our allies fit together.

We have a nuclear planning group that just met last week that鈥檚 been a longstanding feature of NATO. We don鈥檛 have a NATO, much less a nuclear planning group equivalent in the Indo-Pacific. Do we need one? Not clear, but we probably need to think about whether we need one or if not, what we do need in terms of being able to manage nuclear posture and nuclear alliances in the Indo-Pacific.

Rebecca Heinrichs:

Okay. Let鈥檚 talk, before we run out of time, I want to just talk about feasibility. Let鈥檚 just assume that it鈥檚 all just politically feasible. We鈥檝e got allies are cooperative. I also happen to agree with Greg鈥檚 Atlantic council piece, I鈥檝e been calling it the in-theater triad, increased. You want all three delivery systems an improvement in those in-theater, in the European theater.

Do you think, Greg, is it technically feasible? Is it financially feasible? You鈥檝e taken a look at this to know. I mean, you wouldn鈥檛 make this advice to policymakers and to military strategists if you didn鈥檛 think it was possible. Can you just give us a basic sense of the do-ability of this?

Greg Weaver:

Yeah, sure. Of the theater part of it?

Rebecca Heinrichs:

Of urgently, and then I鈥檒l just say too, because I also agree that, in my view, the scenario in which deterrent is most likely to fail is going to be in theater based on what our adversaries are doing.

Greg Weaver:

Yeah I agree. I agree with that.

Rebecca Heinrichs:

To me, it鈥檚 sort of the alligator closest to the boat that we just have to address, which is theater nuclear options.

Greg Weaver:

So clearly technically feasible, right? We have existing delivery systems that are conventional delivery systems that can be modified to carry nuclear warheads. The warhead part of it is probably the harder part in the theater part. Probably the early on upload is probably the easier part on the strategic side, but longer term it鈥檚 an issue, the warhead supply.

So there are standoff weapons that could be modified that are conventional weapons today that could be modified to carry nuclear warheads. There are cruise missiles. I mean, we don鈥檛 have the Pershing II anymore, but we know how we built it, right? I mean, you could rebuild it if you wanted to. And it was pretty good. It was a pretty good weapon. We鈥檙e developing hypersonic weapons in the conventional force that could easily be modified to carry nuclear weapons. So it is feasible. You might have to do some more nuclear warhead modification design work to feed the theater force than you would at least initially on the strategic side, but it鈥檚 definitely feasible.

But, as Austin indicated at the beginning, it would behoove us to fix the nuclear weapons infrastructure, both DOD and... We don鈥檛 have sufficient industrial base to build enough conventional precision strike weapons. And those are the systems you would be putting nuclear weapons on if you did that, if you went down that path. So we need to fix the defense industrial base side. We also need to fix the DOE side. And the DOE side I think is a little harder to fix. You can fix the defense side with money.

The DOE side, because DOE actually sort of runs those, not sort of, they run the facilities and they manage the projects. It鈥檚 a little harder on that side. But we need sufficient capacity to build warheads to support our strategy. We shouldn鈥檛 be in a situation, we鈥檙e too rich a country to put ourselves in a situation where we have to make suboptimal strategy choices because we can鈥檛 build enough warheads. I mean, in the Cold War, we built so many more warheads and we won鈥檛 need anywhere near that many now. There鈥檚 no logical reason why we couldn鈥檛 rebuild DOE鈥檚 ability to build significantly more weapons per year than they鈥檙e currently capable of doing.

Rebecca Heinrichs:

Yeah. It is-

Greg Weaver:

Let me add one other thing to that. On the theater part, there are existing, as I said, conventional delivery systems. There are also the launch platforms for all those systems, aircraft, ships, submarines. And increasingly now, because the Army is getting back in the business of intermediate range strike with cruise missiles and hopefully a hypersonic missile, there鈥檒l be force structure that you could make dual capable, even in the Army to do this, and the Marine Corps.

Dr. Long:

Can I just add one point on cost? So isn鈥檛 this all wildly unaffordable? It turns out nuclear weapons, particularly once you鈥檝e paid the infrastructure costs Greg just talked about, are actually relatively inexpensive. So if you look at, we鈥檒l take from a couple of years ago because we don鈥檛 have a current budget snapshot, but if you took from a couple of years ago what the total DOD and DOE, Department of Energy, budgets were, and then the spending that was projected over the next decade on nuclear weapons and increased it by a fairly significant amount, so let鈥檚 say about a third given cost overruns and blah, blah, blah, blah, blah, it was going to be in the neighborhood of 100 billion a year. Wow, that鈥檚 a lot of money. Even a couple of years ago that was still just over 10% of the combined budget of DOD and DOE. So it is not cheap, but relative to everything else we do, it is relatively inexpensive. And as Greg said, it would be foolish to sort of undermine the foundations of our strategy for essentially what is 10% of the combined budgets of those two entities.

Greg Weaver:

And 10% of the budget is designed to achieve the single highest priority objective of our national defense strategy, which is to prevent a large-scale nuclear attack on the United States.

I mean, when you鈥檙e spending 90% of your defense budget, even in a big modernization you鈥檙e spending 90% of the defense budget on all the lesser objectives of the strategy below preventing a large-scale attack on the United States, I don鈥檛 think you鈥檙e anywhere near where you could say it鈥檚 unaffordable. Who said it? Mattis? We can afford survival.

Dr. Long:

Yeah.

Rebecca Heinrichs:

Can鈥檛 really top that. Great last point to close us out. I just want to commend you, again, both the essays that they wrote here, the Strategic Posture Commission, pleased do go to those. And thank you both, not just for the work that you鈥檝e provided for these essays and your contributions here, but just your service of the country. Sad to see you go Austin, but look forward to continuing to read your-

Greg Weaver:

He鈥檒l be back. He鈥檒l be back.

Rebecca Heinrichs:

He鈥檒l be back. We hope so for the sake of all of us. But thank you all. Please join me in thanking our two panelists.

Related Events
11
June 2025
Past Event
Risky Business: How Chinese Companies Use Hong Kong to Evade US Sanctions
Featured Speakers:
Thomas Benson
Samuel Bickett
Joey Siu
Moderator:
Michael Sobolik
Getty Images
11
June 2025
Past Event
Risky Business: How Chinese Companies Use Hong Kong to Evade US Sanctions

Join Hudson for an event examining new research about how Beijing exploits Hong Kong鈥檚 unique position and why economic and political developments on the island matter for US policymakers and the interests of Americans.

Getty Images
Featured Speakers:
Thomas Benson
Samuel Bickett
Joey Siu
Moderator:
Michael Sobolik
10
June 2025
Past Event
North America at a Crossroads: Advancing Economic Security
Featured Speakers:
Erin O鈥橳oole
Sergio Gomez Lora
Thomas J. Duesterberg
Luke Coffey
Moderator:
Candace Laing
Getty Images
10
June 2025
Past Event
North America at a Crossroads: Advancing Economic Security

Join Hudson for a discussion about the future of the continent and how the North American states can increase economic cooperation to strengthen the continent鈥檚 security.

Getty Images
Featured Speakers:
Erin O鈥橳oole
Sergio Gomez Lora
Thomas J. Duesterberg
Luke Coffey
Moderator:
Candace Laing
10
June 2025
Past Event
Defending in Outer Space: A Conversation with Congressman Jeff Crank
Featured Speakers:
Congressman Jeff Crank
Rebeccah L. Heinrichs
DVIDS
10
June 2025
Past Event
Defending in Outer Space: A Conversation with Congressman Jeff Crank

Join Hudson Senior Fellow Rebeccah L. Heinrichs, the director of Hudson鈥檚 Keystone Defense Initiative, and Congressman Jeff Crank (R-CO), a member of the House Armed Services Committee, for a conversation about the threats to American satellites and the policies and programs necessary to defend US interests in space.

DVIDS
Featured Speakers:
Congressman Jeff Crank
Rebeccah L. Heinrichs
09
June 2025
Past Event
How to Save the Soul of the American University with Rabbi Dr. Ari Berman
Featured Speakers:
Rabbi Dr. Ari Berman
Liel Leibovitz
Getty Images
09
June 2025
Past Event
How to Save the Soul of the American University with Rabbi Dr. Ari Berman

Rabbi Dr. Ari Berman, president of Yeshiva University, will join Hudson Senior Fellow Liel Leibovitz to discuss how faith-based education can show a better way forward for US higher learning institutions.

Getty Images
Featured Speakers:
Rabbi Dr. Ari Berman
Liel Leibovitz