Published: April 2, 2026

On December 23, 2025, the Pentagon released its annual 2025 China Military Power Report to Congress—a reminder that America is still trying to deter tomorrow with yesterday’s force. The report assesses China’s stockpile stayed in the low 600s through 2024 but remains on track to have over 1,000 nuclear warheads by 2030, while Russia continues to brandish tactical (non-strategic) nuclear weapons to shield conventional aggression. Yet U.S. deterrence planning still assumes that sufficiency against one peer will scale to two.

Within the bomber community, personnel are trained to operate and make decisions amid uncertainty. Deterrence cannot rely on idealized scenarios. Washington, however, continues to plan and budget as if deterring one peer at a time is adequate to maintain peace. Since the Nixon administration elevated “strategic sufficiency,” the U.S. has preferred a survivable second-strike posture over matching adversary numbers, even as U.S. Strategic Command (STRATCOM) Commander Adm. Charles Richard testified in 2020, “We do not seek parity.”

That posture of sufficiency made sense when the U.S. faced one major nuclear superpower at a time. It makes less sense when the U.S. must deter two nuclear peers, potentially in overlapping crises while also accounting for a third in North Korea. The 2023 Congressional Commission on the Strategic Posture of the United States warned the nation is “ill-prepared” for a future where China and Russia can coordinate, or opportunistically exploit dual crises.

The issue is not that U.S. modernization appears timid on paper. Instead, it is optimized for a single adversary. A survivable second strike against one major nuclear opponent is not enough as a credible deterrent against two, especially if one adversary believes the other will absorb U.S. attention. Deterrence developed for one enemy breaks down when facing multiple opponents.

Modernization is also colliding with the same budget dysfunction that has battered conventional readiness for years. Continuing resolutions and shutdown threats do not just delay programs; they advertise doubt about U.S. resolve. In deterrence, doubt about political will can be just as harmful as uncertainty about capability.

Enter the logic of reciprocity. The White House’s February 2025 memorandum on Reciprocal Trade and Tariffs argues that reciprocal measures are not punishment; they are a way to restore balance when competitors exploit unequal terms. Reciprocity is a framework for fairness, and fairness is what makes commitments believable.

Deterrence needs a similar framework. Strategic fairness demands a posture calibrated to the combined capabilities of the adversaries the U.S. must deter, not an accounting trick that treats them sequentially. Dynamic Parity offers that calibration: match the aggregate nuclear threat, go no further, and use that ceiling to avoid both arms racing and strategic vulnerability.

Dynamic Parity is “parity without superiority.” It rebuffs a race for numerical dominance, but it also rejects minimalist postures that assume an adversary will politely wait its turn. It restores equilibrium as the foundation of deterrence in a multipolar era.

Skeptics argue that “parity” invites an arms race or abandons arms control. Dynamic Parity does the opposite: it clearly separates what is required from what is excess, with the numerical arsenals determined by the adversary and then matched by America. This establishes a disciplined standard for force planning. That discipline also enhances the U.S. position in future risk-reduction negotiations by making the baseline requirements explicit instead of improvised during a crisis.

Strategy, however, is not self-executing. If Dynamic Parity is the strategic logic, Congress needs a budgeting structure that can deliver it. The National Sea-Based Deterrence Fund provided the Columbia-class ballistic missile submarine program with authorities that support long-lead procurement and multiyear contracting.

Congress should implement that approach throughout the nuclear enterprise via a National Strategic Deterrence Fund. The goal is not to escape oversight; it is to safeguard the core of deterrence from annual budget brinkmanship and start-stop inefficiency. If the fund is protected as non-discretionary spending with multiyear authority, modernization timelines become actual plans rather than mere hopes.

Here is what that would look like in practice:

• Direct the next Nuclear Posture Review to adopt a concurrency standard and use Dynamic Parity as the force-planning logic.
• Create a National Strategic Deterrence Fund with multi-year and long-lead authorities across delivery systems, warheads, infrastructure, and nuclear command, control, and communications.
• Require annual execution reporting, i.e., schedule, industrial capacity, and funding stability, so Congress can measure delivery and not intent.

This is about credibility, not bookkeeping. The State Department’s International Security Advisory Board warned in 2023 that extended deterrence hinges on the perception of sustained capability and resolve. Allies and adversaries do not parse budget documents; they watch whether the U.S. executes what it promises.

Execution is the signal. Russia’s 2024 Fundamentals of Nuclear Deterrence establishes clear redlines for potential nuclear use while deliberately preserving threshold ambiguity. China is building the force structure for nuclear coercion alongside conventional power projection. If Washington cannot modernize on schedule and at scale, because budgets lurch from continuing resolution to shutdown threat, adversaries will read that as strategic hesitation, not fiscal noise.

Reciprocity works only when it is enforced. In nuclear deterrence, enforcement means a posture designed for concurrency and a budget mechanism that delivers it. Dynamic Parity provides the standard; a National Strategic Deterrence Fund provides the spine. In a multipolar nuclear world, balance against combined nuclear threats is not a theory, it is the price of credibility.

Joseph H. Lyons is a career bomber aviator and a doctoral candidate at Missouri State University’s School of Defense and Strategic Studies. The opinions, conclusions, and recommendations expressed or implied within are solely those of the author and do not necessarily reflect the views of the United States Air Force, the Department of Defense, any other U.S. government agency, or Missouri State University.

Reciprocity in Deterrence, Not Just Trade was originally published on Global Security Review.

For advocates of renewed nuclear weapons testing, stop packing for the journey to the Nevada National Security Sites (NNSS). No mushroom cloud or subterranean detonation is soon to take place. Anti-nuclear protestors should also stay home.

The truth is less exciting. No real changes will happen “immediately” that “light up the sky and shake the ground.” This is not to say that the announcement had no effect. In fact, the statement was indeed monumental and incredibly significant.

Contrary to public perception, the US has never ceased testing its nuclear weapon systems. What has changed since the 1992 self-imposed moratorium on high-yield explosive testing is the nature of those tests.

Before 1992, the US conducted 1,054 nuclear weapon test explosions. The country detonated 839 of those warheads underground, mostly at the then-named Nevada Test Site, where the last halted test, Icecap, still stands as a memorial to the explosive testing days.

Several scientists involved in Icecap acknowledge that, owing to the extensive preparations undertaken, such as instrumentation, computational simulation, analysis, and test rigging, the most significant insights were gained from the limited number of unsuccessful tests. In other words, there is still great confidence in the performance and reliability of the American nuclear arsenal. It is this kind of “testing” to which President Trump’s declaration is likely referring.

Since 1992, testing has been through proxy systems that simulate a nuclear explosion’s unique energy output and then uses the results to validate physics models on advanced computer systems, known as physics-based modeling. This approach provides a way to validate the physics and predict the performance of a nuclear explosion under conditions that were never known in an underground test.

Scientists continuously conduct these tests, improving and refining them as added details are learned. They often report that scientists know much more now than possible from explosive testing.

Despite the president’s directive that testing “will begin immediately,” experts agree that resuming full-scale nuclear explosive testing is a complex and time-consuming endeavor. According to the Arms Control Association, it would take at least 36 months to prepare the Nevada Test Site for contained underground detonations.

This includes environmental assessments, infrastructure upgrades, and political approvals. This does not mean that explosive testing is impossible, but it represents a clear change in policy and a national effort to move nuclear weapons to the forefront of national strategy through an active nuclear explosive testing program.

The phrase “on an equal basis” is particularly provocative. It implies that nations like Russia and China may already be conducting nuclear explosive tests or at least advancing their capabilities in ways that challenge the spirit of the Comprehensive Nuclear Test Ban Treaty (CTBT). Either of these should sound alarms and rightly must elicit a response.

The president has chosen precisely the response as outlined in the National Institute for Deterrence Studies’ (NIDS) Dynamic Parity report, where a response matches the activities of adversaries, giving them the option to continue expanding their nuclear capabilities, knowing how America will respond, or cease and return to the table to negotiate for a more stable relationship.

The announcement of an “immediate” resumption of (explosive) testing is monumental because of its effect on deterrence. In his international policy book, The Necessity of Choice, Henry Kissinger writes that deterrence is the (mathematical) product of will and capability. Few would question that the US has a nuclear arsenal and delivery systems that can cause incredible damage and harm. However, there is growing criticism and concern that the US lacks resolve to deploy its nuclear weapons even if an existential crisis arises.

Without clear signals of resolve, adversaries may doubt American willingness to act, weakening deterrence. This declaration supports that resolve without making a direct threat to any adversary. It simply puts them on notice.

Whether President Trump’s message leads to actual detonations or remains symbolic, it marks a turning point in American nuclear policy. It also aligns with the Dynamic Parity framework advocated by Curtis McGiffin and Adam Lowther, which calls for symmetrical deterrence and strategic clarity.

President Trump is demonstrating resolve, assuring allies, and highlighting American commitment to nuclear deterrence. The path forward should prioritize modernization, transparency, and diplomacy—not a return to the destructive rituals of past decades.

James C. Petrosky, PhD, is the President and Co-founder of the National Institute for Deterrence Studies and Professor Emeritus of the Air Force Institute of Technology. Views expressed in this article are the authors own. 

“Resumption of Nuclear Testing”—Not So Fast! was originally published on Global Security Review.

During the signing event, President Trump remarked, “On trade, I have decided, for purposes of fairness, that I will charge a reciprocal tariff, meaning whatever countries charge the United States of America, we will charge them no more, no less. In other words, they charge the US a tax or tariff, and we will charge them the exact same tax or tariff, very simple.”

A strong economy is vital to national security. In addition to reliable access to energy, minerals, and capital, any great power fundamentally requires a resilient, production-oriented, economic infrastructure that ensures a comprehensive and adequate industrial base capable of producing most of the nation’s necessities.

Furthermore, America’s national debt exceeds $36 trillion, with a debt-to-GDP ratio surpassing 133 percent. In fiscal year 2024, the cost of servicing the debt’s interest surpassed America’s defense budget.

Americans place great importance on fairness and balance. The Declaration of Independence famously states that “all men are created equal” and advocates for equal treatment for all individuals, regardless of status or position. The Constitution establishes a framework that balances power among various branches of government, as outlined in James Madison’s Federalist 51.

Socrates once remarked, “If measure and symmetry are absent from any composition in any degree, ruin awaits both the ingredients and the composition…. Measure and symmetry are beauty and virtue the world over.” He was right.

President Trump seeks to implement tariff reciprocity towards America’s competitors in a fair, just, and balanced manner. Can this same principle be applied to his peace through strength deterrence approach? Yes, it can.

Dynamic parity is a nuclear deterrence strategy that deliberately achieves and maintains a contextually symmetrical balance of nuclear force capabilities, capacities, and composition in relation to the combined nuclear strength of China, North Korea, Russia, and possibly Iran. This strategy seeks to balance America’s nuclear deterrent force against the potentially collaborative arsenals of these adversaries, thereby enhancing deterrence, reassuring allies, and preserving strategic stability in a world lacking binding arms control agreements.

America is about 15 years into a 30-year effort to recapitalize its nuclear arsenal, which has a program of record that offers a one-for-one intercontinental ballistic missile (ICBM) swap, two fewer ballistic missile submarines, and a reduced bomb load capacity. The current program of record was designed for a world that no longer exists.

Even the Biden administration’s acting Assistant Secretary of Defense for Space Policy acknowledged the need to explore “options for increasing future launcher capacity or adding more deployed warheads in land, sea, and air capabilities” to address the significant growth and variety of China’s nuclear arsenal. The 2023 Congressional Commission report on U.S. Strategic Posture stated that the current nuclear modernization program is “necessary, but not sufficient” for facing two nuclear peers: China and Russia.

Americans often assess the fairness of financial rewards and the distribution of costs, commonly reacting to perceived unfairness with feelings of hostility and responding with protest. Regarding economic, political, or national security issues, we are “wired to resist unfair treatment.” This sense of fairness and balance also extends to America’s defensive posture. A recent Reagan National Defense Forum Survey noted that 77 percent of voters were concerned that the national debt might force defense cuts, with 79 percent supporting increased defense spending, and 70 percent of those surveyed were concerned about “Russia launching a thermonuclear attack against the US.”

In this context, geopolitical fairness refers to the perceived evenhandedness among nations in a manner that mutually impacts interests. Meanwhile, geopolitical balance pertains to the distribution of perceived power between states in the international system. The 2024 Annual Threat Assessment noted that Russia possesses the largest, most diverse, and most modern nuclear weapons stockpile in the world. This infers that America remains inferior in aggregate nuclear weapon numbers and is trailing in modernization, which creates an imbalance.

Correcting long-standing imbalances in trade policy and military shortfalls is vital to the American conscience. Allowing trade deficits with economic competitors to persist without challenge is akin to unilateral disarmament. The US trade deficit for goods reached a record $1.2 trillion in 2024, while the treasury borrowed $2 trillion that same year. Ongoing deficits of this magnitude threaten domestic companies and jobs, putting negative pressure on GDP and the prosperity of individual Americans. Ensuring that America’s nuclear deterrent can counter the threats posed by its adversaries will safeguard citizens’ security and sovereignty, enabling prosperity.

President Trump’s new Trade and Tariff Reciprocity Policy, like the nuclear deterrence strategy of Dynamic Parity, places the burden of acceptable behavior on America’s competitors. They both empower America to act in the interest of fairness, aiming to achieve balance in both process and product. Geopolitical stability is not born of an America exploited economically or constrained militarily. This kind of weakness is not only provocative but also insulting.

Col. Curtis McGiffin (US Air Force, Ret.) is Vice President for Education of the National Institute for Deterrence Studies and a visiting professor at Missouri State University’s School of Defense and Strategic Studies. He has over 30 years of total USAF service. The views expressed are his own.

Trump’s Trade and Tariff Policy Benefits America’s Nuclear Deterrent was originally published on Global Security Review.

A driving factor is the rising nuclear threat posed by China, North Korea, and Russia. Such a threat requires effective nuclear deterrence. Another concern is continuing doubts as to whether America’s extended deterrence is reliable in a serious international crisis or a major shooting war.

It is true that when authoritarian states brandish their nuclear arsenals for coercion, repeatedly threatening nuclear attack, any nation would be concerned and look to its guarantor of security for help. Unfortunately, the United States is proving slow to field the kind of arsenal that can not only deter or defeat aggression against itself, but also provide that same capability for almost three dozen allies.

The US is now in a position where it must modernize and expand its own nuclear arsenal and right-size those numbers to sustain dynamic parity with adversaries. Legally and morally, there is indeed an inescapable duty to deter. For Japan and South Korea, that duty will be met by the United States or themselves.

Nuclear participation by America’s allies in Asia would be in direct contravention to US policy, and would violate both the letter and the spirit of the 1970 Non-Proliferation Treaty (NPT), but it would certainly prove understandable. Australia, Japan, and South Korea all signed the treaty, but a voracious and aggressive China and North Korea are proving a real threat to all three states.

Rather than take a position for or against ally nuclear participation, an overview of the main arguments on both sides of the issue are instructive.

Pros

First, recall that Australia, Japan, and South Korea all have a level of experience with the nuclear issue. Japan, of course, faced atomic bombings of Hiroshima and Nagasaki. But, as Japan up-arms to deter China and North Korea, Tokyo might decide to field its own nuclear weapons.

Southern and western Australia were the sites of over a dozen British nuclear weapon tests between 1952 and 1963. This is a fact too few understand.

South Korea had its own nuclear weapon research and development program during the Cold War, which was abandoned because of American pressure. South Korea does rely on nuclear power for its generation of electricity.

Second, note that these American allies do possess civilian nuclear power industries, sophisticated militaries, sizable economies, and advanced science and technology capabilities. All three countries could build nuclear weapons in relatively short order. On the positive side, the fielding of Australian, Japanese, and South Korean nuclear forces would make aggression far more complicated for China and North Korea.

The inclusion of allied nuclear forces would disperse and diversify the collective nuclear deterrent available for employment and increase the number of targets China or North Korea must strike in a conflict. Allied nuclear participation is also an alternative to overseas nuclear basing agreements, like those that existed during the Cold War. Given the lack of available American weapons, such an arrangement could prove very beneficial.

Lastly, nuclear participation would put an end to the endless debate over the credibility of  American extended deterrence. Rather, the focus would turn to integrating nuclear forces in the event of a conflict.

Cons

There are some well-known arguments for continued nuclear nonproliferation. They include the longtime prohibition in US policy and the NPT prohibition against it. There are also pragmatic concerns.

First, if a country were to withdraw from the NPT, although allowed by Article X, it would create significant diplomatic tensions between the US and the country withdrawing from the treaty. American sanctions could significantly harm the economy of Australia, Japan, or South Korea.

Second, any democratic state pursuing nuclear weapons would undermine Western efforts to halt Iran’s nuclear weapons development. Worse, it could open the floodgates of nuclear proliferation among states that are certain to prove less responsible with those weapons.

Third, China might see the pursuit of nuclear weapons by American allies as a sufficient reason to launch a “defensive” nuclear strike. China’s “active defense” strategy clearly supports the use of preventive attacks.

Fourth, the Nuclear Supplier’s Group would end all support to the civilian nuclear programs of Australia, Japan, and/or South Korea. Such a decision would cause great difficulty for power generators.

Conclusion

For Australia, American promises and the continent’s geographic position may prove sufficient to prevent a move to a nuclear weapons program. For Japan and South Korea, the threat is much closer. How these countries evaluate the threat is yet to be determined. They are signaling the United States that they want stronger assurances of American commitment.

Such assurance will prove difficult for the United States for many reasons. Neither China nor North Korea should take for granted that America’s allies will remain under the nuclear umbrella. It is only because of flagrant aggression that South Korea, and most recently, Japan, are even talking about the need for indigenous nuclear forces.

Joe Buff is a Senior Fellow at the National Institute for Deterrence Studies. Views expressed are his own.

The Pros and Cons of Nuclear Participation in the Pacific was originally published on Global Security Review.

During the webinar, Lowther briefly touched on the alternative and numerically weaker concept of sizing America’s nuclear triad based upon “strategic sufficiency.” This approach would mean deploying just enough nuclear warheads to launch a counterforce first strike on the deployed nuclear delivery platforms of America’s adversaries. For example, it may be possible to strike eight nuclear-capable bombers, which carry 12 nuclear weapons each, with one intercontinental ballistic missile. Thus, the ratio, in this case, would be one American nuclear weapon for 96 (8×12) adversary nuclear weapons. One is strategically sufficient for 96.

Unfortunately, there are a number of challenges with strategic sufficiency as a concept. Let me explain.

It should first be noted that nuclear weapons do not exercise effective deterrence simply by their existence in the American inventory, nor merely by matching friendly weapons to enemy weapons on paper. American planners need to go much further.

The US needs to base its nuclear deterrent arsenal size, and its nuclear deterrent strategy and posture, on a realistic evaluation of possible scenarios. Adversaries will certainly perform such risk analysis. If America’s nuclear readiness falls short, in their minds, adversaries may seek openings to attack.

The American nuclear deterrent needs to include survivable, damage-limiting, and damage-equalizing second-strike capabilities, against both numerous enemy armed forces and extensive enemy countervailing (political control) assets. The US should also have the ability to restore intra-war deterrence and to have leverage during post-war armistice talks, a significant further number of warheads and delivery platforms deployed or in secure stockpiles.

Strategic Sufficiency

In the webinar, Lowther offers as an illustrative case where China’s new missile field deploys three hundred intercontinental ballistic missiles (ICBM), each with eight warheads. In this case, strategic sufficiency may require fifty ICBMs to hold the three hundred Chinese missiles at risk. Dynamic parity, in contrast, would dictate the US should field an arsenal closer in size to China’s, which in this limited example would be 300 missiles with a similar number of warheads.

Admittedly, strategic sufficiency is attractive for a country with a smaller arsenal, but it is also attractive to an adversary with a larger arsenal. The adversary may see strategic sufficiency as a strategy of weakness and built on a lack of will. The approach has a number of flawed assumptions.

First, strategic sufficiency assumes that all American nuclear weapons will succeed in striking their targets and destroying them. While American delivery systems are reliable, they have no experience under the harsh conditions of a nuclear conflict. Some weapons may malfunction, others will be destroyed in a first strike, weapons may not hit their target, and some will be destroyed by enemy defensive systems.

This is why targeteers often allocate two or more warheads to one enemy silo, for example, which is generally considered necessary for a successful counterforce strike. On this count alone, strategic sufficiency underestimates sizing requirements.

Second, a more serious flaw is the assumption that the United States can always launch a counterforce first strike. An adversary’s remaining weapons will still be in their silos, or in their hangars, when American warheads arrive. This is a foolish assumption. The US is unlikely to initiate a first strike, which means it must be able to absorb a strike and respond. Strategic sufficiency does not allow that.

Making the situation much worse is that China, North Korea, and Russia possess nuclear delivery platforms that are mobile, making them far harder to strike. Ballistic missile submarines at sea are, for now, hard to strike. Mobile ICBM launchers move positions constantly, and might also be camouflaged, for example, while inside shipping containers or railroad freight cars. Strategic bombers can maintain airborne alert. Other ICBM launchers can be hidden inside caves or tunnels until the moment they are ready to fire.

Third, the US is highly unlikely, as said above, to employ nuclear weapons in a first strike. A number of wargames played by the military and senior government leaders only underscores the cultural aversion to nuclear weapons use. This means the homeland is likely to face a nuclear attack before the president responds with whatever nuclear weapons remain. If the American arsenal is already smaller than the arsenals of adversaries, the US becomes an inviting target for a second strike or a strike from a different adversary.

Fourth, strategic sufficiency gives allies the impression that the United States has too few weapons to defend North America and both Europe and Asia. This belief may lead allies to seek their own arsenals.

As McGiffin and Lowther argue, dynamic parity is designed to address these specific challenges. China, North Korea, and Russia are very clearly looking to topple the American-led international system. Should the United States seek to build an arsenal that is too small to effectively deter the Authoritarian triad discussed here, not only will Americans suffer, but so will the free world. Moving from 5 percent of the defense budget to modernize the current arsenal to 8 to 10 percent of the defense budget to build the arsenal needed is not in the “too hard to do” category. It is time to recognize that strategic sufficiency is not sufficient.

Joe Buff is a Senior Fellow at the National Institute for Deterrence Studies.

Strategic Sufficiency Is Not Enough was originally published on Global Security Review.