Amidst evolving geopolitical shifts, the foundation of U.S. nuclear deterrence, forged in the crucible of the Cold War, faces a new set of challenges. The principle of mutually assured destruction (MAD), once the bedrock of deterrence, is now being tested by Russia's aggressive posturing and China's strategic advancements. In the wake of Russia's invasion of Ukraine and signals of a willingness to employ tactical nuclear weapons, questions arise about the efficacy of traditional deterrence strategies. Concurrently, China's expanding nuclear arsenal adds complexity to the equation. Do these developments mean America needs to rethink its deterrence strategy? 

In a new paper, “China’s Nuclear Enterprise: Trends, Developments, and Implications for the United States and Its Allies,” FSI Center Fellow Oriana Skylar Mastro focuses on the Chinese perspective of the equation and examines recent trends in Chinese military doctrine and their implications for U.S. deterrence strategy. Mastro’s contribution is part of a new report, Project Atom 2023: A Competitive Strategies Approach for U.S. Nuclear Posture through 2035, produced by the CSIS Project on Nuclear Issues.

A fundamental premise underlying Mastro’s analysis is that China merits distinct scrutiny differently from Russia, and that the two countries should not be considered  “nuclear peers.” Although China is indeed engaging in nuclear force modernization, Mastro contends that the nation is still adhering to its fundamental nuclear policy: minimal retaliation capability and a no-use-first pledge.

While some have been troubled by China’s turn to regional nuclear options like the DF-26, an intermediate-range ballistic missile capable of carrying both conventional and nuclear warheads, Mastro asserts that this is because “they are regional weapons lower on the escalation ladder.” Rather than trying to achieve parity with the United States, she contends that Beijing’s objective is to preserve a credible second-strike capability, which is essential to the concept of deterrence.

Instead of prescribing specific alterations to U.S. force posture or nuclear modernization, Mastro suggests that any changes in U.S. defense strategies carefully consider the impact on Chinese nuclear strategy. The key is to preserve China’s minimal retaliation capability and its pledge to refrain from initiating nuclear warfare: “the most important goal for U.S. deterrence policy should be to ensure it does not encourage a change in China’s nuclear policy and in posture.”

Other steps the United States should take, according to Castro, include preventing the “co-mingling” of nuclear and conventional weapons on vessels apart from ballistic missile submarines. This precaution aims to eliminate ambiguity and mitigate the risk of possible conflict escalation. She also believes that there may be “more costs than benefits” in the proliferation of nuclear weapons among Asian allies — South Korea, Japan, and Australia. These threaten the non-proliferation regime and increase the possibility of accidents. The answer, Mastro holds, is not deployment of U.S. nuclear weapons on foreign soil, but rather increased consultations and joint planning with allies. Such collaborative efforts could reassure allies and partners of U.S. intentions even as they have minimal impact on Chinese contingency planning. 
 

In 2018, the South Korean Supreme Court passed a series of rulings requiring Mitsubishi Heavy Industries and Nippon Steel of Japan to compensate 14 Korean citizens for their unpaid labor. As of yet, neither company has agreed to comply with the ruling. The South Korean government has since announced plans to compensate survivors who were forced to work in Japanese mines and factories during the wartime period, but this remains a unilateral decision on the part of the Yoon administration, not a bilateral position between South Korea and Japan.

These tensions have ripple effects far outside of East Asia. Writing for Toyo Keizai, Daniel Sneider, an FSI Lecturer in International Policy with a focus on Asia, explains the broader geopolitical implications of these issues:

“The Americans have been urging the two countries to settle these problems in order to ease the way to the kind of security cooperation that has become visible in recent months. Joint military exercises for missile defense and other small steps to intensify trilateral coordination are taking place and a resolution of the history of problems may be key to moving ahead.”

Steps Forward

The last year has seen increased efforts to restore more functionality to the South Korea-Japan relationship. President Yoon and Prime Minister Kishida met briefly on the sidelines of the September 2022 UN General Assembly meeting in New York, which was followed by respective visits of Yoon to Tokyo in March 2023 and Kishida to Seoul two months later in May, the first such visits in over 11 years.

The Camp David summit, which brought the U.S., South Korea, and Japan together as strategic partners, is the latest step on the hoped-for road to institutionalized security cooperation between the three nations.

Speaking to NBC, Shorenstein Fellow Thomas Fingar explained the significance of the weekend.

“The importance of this [summit] is that it was a genuine trilateral meeting, which means the Japanese and the Koreans are talking to one another as opposed to the U.S. dealing separately with each of them.”

In contrast to the idyllic Camp David setting, the three leaders are faced with a weighty set of issues, noted Sneider, including the crisis triggered by the Ukraine war, North Korea’s aggressive posture, as well as growing concerns about China.

Oriana Skylar Mastro, an FSI Center Fellow and an expert on security, conflict resolution, and the Chinese military elaborated further on the mutual pressures South Korea, Japan, and the United States face:

“Since President Biden came into office, he’s really stressed strengthening alliances and partnerships as a way of protecting U.S. interests abroad. I'm sure there has been much work behind the scenes to try to get these two countries to come together. In terms of the timing [of this summit], it's of course partially because of the accumulation of these concerns over China. I think also the war in Ukraine has done a lot to really open up leaders' eyes to the dangers of having neighbors with territorial hopes and claims that also have strong militaries that could potentially be undeterred from using force. I think it's fair to say that this has also pushed these two countries to rethink their own strategies for security.”

An Uncertain Future

The official summit documents outline both a vision of partnership and offer a variety of practical agreements on everything from annual leadership summits to meetings on economic and cyber security, and a proposal for how to move forward with joint military exercises. Notably, the two-paragraph ‘commitment to consult’ on responses to ‘regional challenges, provocations, and threats affecting our collective interests and security’ — while not a fully embodied collective security agreement — is nonetheless a “stunning achievement,” says Daniel Sneider.

Despite agreeing on a hefty laundry list of shared concerns and security goals, the way forward for additional trilateralization between the United States, Japan, and South Korea is not necessarily clear. Oriana Mastro explained: 

“Even though they might have shared threat perceptions, there is still a lot of trust that has to happen between nations for them to take coordinated military approaches. If two countries, for example, exercise together — and that's one of the things that the Biden administration is hoping to get out of this summit: more routine trilateral exercises — you get to learn a lot about another country's military, and that only really happens between friends. That’s also true of intel sharing. When you share intelligence, you’re not only sharing information, you're sharing how you get intelligence, which can also be sensitive. So while they've shared these threats for a while, it hasn't really gotten to the level in which they were willing to take risks in terms of the relationship between South Korea and Japan to become closer in the security space in a way that would help them combat these issues together.”

Besides the challenges of international diplomacy, Yoon, Kishida, and Biden also face domestic hurdles that could hinder further cooperation.

In a comment to the Wall Street Journal, Gi-Wook Shin noted that, “Yoon only entered politics a few years ago. If his party loses the election, I don’t know who will stay with him.” Improving South Korea-Japan relations was a major platform of the Yoon campaign, and backlash against his administration could yield disinterest or even renewed hostility toward continuing his efforts. 

Daniel Sneider sees similar challenges for Biden and Kishida. Writing in East Asia Forum, he cautioned:

“President Joe Biden is already embroiled in an election campaign that threatens to bring Donald Trump and his isolationist views back to power. The Camp David summit was barely noticed amid the constant flow of domestic political news, though it mostly received welcome praise in the media. . . Imprisoned by domestic politics, the White House will likely be unable to give substance to this emergent partnership.”

In the case of Kishida, the decision to release wastewater from the Fukushima nuclear site, which came just days after the conclusion of the summit, has been particularly counterproductive. Sneider continued:

“Prime Minister Fumio Kishida has been waiting for a bump from the Camp David summit. But he is experiencing a deepening slide in opinion polls. The Fukushima release faces opposition within Japan, including from fishermen and others worried about boycotts of Japanese products in China and South Korea. Talk of an early parliamentary election in Japan, intended to consolidate Kishida’s claim to long-term leadership, is now on hold.”

Where is the trilateral U.S.-Japan-South Korea relationship headed next? Follow FSI scholars to stay informed about the latest developments. Register to receive alerts to your inbox either weekly or monthly.   

Kahl’s research focuses on the resurgence of geopolitical competition, American grand strategy, and the international security implications of emerging technologies such as artificial intelligence and machine learning.

Prior to joining the Freeman Spogli Institute, Kahl was Deputy Assistant to the President and National Security Advisor to the Vice President. In that position, he served as a senior advisor to President Obama and Vice President Biden on all matters related to U.S. foreign policy and national security affairs, and represented the Office of the Vice President as a standing member of the National Security Council Deputies’ Committee. 

Kahl is the co-author of Aftershocks: Pandemic Politics and the End of the Old International Order (New York: St. Martin’s Press, 2021) and States, Scarcity, and Civil Strife in the Developing World (Princeton, NJ: Princeton University Press, 2006), and he has published widely on international security and U.S. foreign and defense policy, including in Foreign Affairs, Foreign Policy, Middle East Policy, the National Interest, the New Republic, the New York Times, Politico, War on the Rocks, and the Washington Post, among others. 

At CISAC, he will return his focus to research and teaching CISAC undergraduate courses and graduate courses in FSI's Master's in International Policy program.

 “The world is more complex and dangerous than at any time since the end of the Cold War, and the scholars and students at FSI have much to contribute to addressing this rapidly evolving security environment,” said Professor Kahl. “I’m thrilled to return to FSI to contribute to this vital work.”

Impacts on Russia, Ukraine, and Beyond

Michael McFaul

The implications of the 72-hour mutiny will last much longer and extend much further beyond Rostov and Moscow, says FSI Director and former U.S. ambassador to Russia Michael McFaul.

Speaking with Madeline Brand of KRCW, McFaul outlined the difficult situation Putin now finds himself in.

“This whole series of events has made Putin look a lot weaker than he looked three or four days ago. The very fact that the Wagner group exists is a sign of weakness. Putin needs them because he couldn’t rely on his armed forces.”

Elaborating further on Putin’s dilemma, McFaul says:

“As those mercenaries were getting closer to Moscow, Putin went on TV and sounded very macho, calling Prigozhin’s men traitors and promising to crush them, but then four hours later, he capitulates and starts to negotiate. And now he’s given another speech where it sounds like he’s pleading with these mercenaries to lay down their weapons and join the Russian forces. That clearly shows he hasn’t resolved this Wagner crisis yet.”

McFaul predicts that Putin’s remaining partners are also taking note of his fumbled reaction to the rebellion.

“​​If you’re Xi Jinping watching this, the big bet you made on Putin as a partner in opposing the West is looking really problematic right now.”

What Chinese officials fear most, McFaul explained to MSNBC’s Jonathn Capehart, is instability and dissolution, both internally and amongst their neighbors. Historically, the collapse of the Soviet Union was a catastrophic event for Chinese Communist Party officials, and a lesson the current leadership is loath to repeat.

McFaul asserts that, “The longer Putin’s war in Ukraine goes, the more probable it becomes that Russia becomes more unstable. The longer this war goes on, the more likely it is we could see something like this play out over and over again. So I would hope that Xi Jinping understands that putting pressure on Putin to end the war in Ukraine is the best way to prevent chaos on China's borders.”

There are also important lessons the United States and its allies need to consider when evaluating the kind of support they are willing to give Ukraine as the war wears on.

“Putin capitulated very fast, and I think that says a lot about how he’s going to fight in Ukraine and whether he needs an ‘off ramp’ like we’ve been saying. We’ve heard all of these arguments that if he’s backed into a corner he’ll never negotiate. Well, this weekend Putin was in a corner, and he didn't double down. He didn't escalate. He negotiated,” McFaul observes.

Continuing this thought on his Substack, McFaul emphasized that, “The lesson for the war in Ukraine is clear. Putin is more likely to negotiate and end his war if he is losing on the battlefield, not when there is a stalemate. Those who have argued that Ukraine must not attack Crimea for fear of triggering escalation must now reevaluate that hypothesis. The sooner Putin fears he is losing the war, the faster he will negotiate.”

Or, as McFaul writes in Journal on Democracy, “Anything that weakens Putin is good for Ukraine. It is as simple as that.”  

Fallout on Nuclear Security and Norms

Rose Gottemoeller

Throughout the full-scale invasion of Ukraine, there have been concerns about nuclear sabre rattling by Putin and Kremlin-backed propagandists. Writing in the Financial Times, Rose Gottemoeller, the Steven C. Házy Lecturer at CISAC and former Deputy Secretary of NATO offered this insight:

“The fixation with nuclear apocalypse seems to be the symptom of a wider anxiety that the west is bent on Russian dismemberment because of its aspirations in Ukraine. The Kremlin argues that it only wanted to resume its ancestral right to a Slavic heartland, but that the U.S. and NATO are seeking as punishment Russia’s full and complete destruction as a nation state.”

Gottemoeller has been quick to condemn Putin’s casual threats of nuclear use and clear in her recommendations to the U.S. administration and its allies to find constructive ways to keep nuclear arms talks open despite the war in Ukraine and setbacks like Russia’s suspension of its participation in the New START Treaty.

The Wagner takeover of Rostov-on-Don adds a new layer to the security concerns surrounding Russia’s nuclear posture. Looking at the evolution of Putin’s nuclear rhetoric over the last 18 months, Gottemoeller writes:

“Putin embraced nuclear weapons to keep the United States and its NATO allies off his back and out of his way as he pursued his adventure in Ukraine. It did not work out that way. The United States and NATO were not ready to fight inside Ukraine, but they were willing to do everything else to support Kyiv’s cause — economic, political, security and military assistance to ensure Russia’s defeat. Nuclear weapons failed Putin as a guarantee against external meddling.”

Turning to the events of the last week, Gottemoeller continues:

“We learned on June 24 that they are no help to him internally, either. He could not brandish nuclear weapons in the face of the Wagner Group uprising . . . Nuclear weapons are not the authoritarian’s silver bullet when his power is strained to the breaking point — far from it. In fact, they represent a consummate threat to national and global security if they should fall into the wrong hands in the course of domestic unrest.”

In light of Prigozhin’s mutiny, she urges global leaders to “focus on the problem, stop loose nuclear talk, and put new measures in place to protect, control and account for nuclear weapons and the fissile material that go into them.” 

The Unknown Unknowns of the Settlement

Steven Pifer

Major questions remain about the deal struck between Putin, Prigozhin, and Lukashenko. While Lukashenko has confirmed that the Wagner boss is now in Belarusian territory, it is unclear — and many feel, unlikely — that he will stay there in quiet retirement. 

Weighing in on Twitter, Steven Pifer, an affiliate at the Center for International Cooperation and Security and The Europe Center, and a former U.S. Ambassador to Ukraine, acknowledged, “We likely do not know all carrots and/or sticks that were in play to lead to Prigozhin’s decision to end his mutiny . . . Something does not add up.”

Following up in Politico, Pifer added:

“The ‘settlement’ supposedly brokered by President Alexander Lukashenko of Belarus leaves Putin, who was invisible during the day except for a short morning TV broadcast, as damaged goods. It provided the impression that all was forgiven, likely because the Russian president feared the prospect of Prigozhin’s troops parading in Moscow — even if they lacked the numbers to take control of the capital. It is harder to understand Prigozhin. His demands went unmet, yet he ordered his troops back to garrison, accepted that they might join the Russian army that he detests, and meekly set off for Belarus. There clearly is more behind this ‘settlement’ than we understand.”

Click the link for a full transcript of “What We Need To Talk About When We Talk About Taiwan.“

The Likelihood of Invasion

In stark terms, Oriana Skylar Mastro, a center fellow at the Freeman Spogli Institute for International Studies, believes there’s a 100% chance China will use some sort of force against Taiwan in the next five years. For the last twenty years, China has been making concerted efforts to modernize its military and increase its capabilities not only to assert force against Taiwan, but to deter intervention from the United States.

In the majority of scenarios, the United States wins in a conflict with China over Taiwan. But the United States also carries a distinct geographic disadvantage. The distance across the Taiwan Strait between the island and mainland China is approximately 100 miles, which is roughly the distance between Richmond, Virginia and Washington D.C. If China moves quickly, PRC forces could take Taiwan before U.S. forces have time to move into position.

When considering possible outcomes in Taiwan, it is equally important to consider the motivations driving Beijing’s ambitions. The leadership on the mainland has been planning and thinking about how to retake Taiwan since 1949. With the modernized capabilities coming online, the balance of power has shifted in China’s military favor, and the cost-benefit calculus favors Beijing’s ambitions. The long-term planning stage is now reaching its end, and the prospects of direct action are increasing.

The View from Taipei

Political leaders in Taiwan recognize the growing danger they face across the Strait. In Larry Diamond’s assessment, the end of Hong Kong's autonomy and the suppression of the “one country, two systems” model, the rising military incursions into Taiwan's air defense identification zone and coastal waters, and the whole rising pace of Chinese military intimidation has sobered Taiwan and visibly impacted Taiwanese public opinion.

Concerningly though, while the political elite recognize the real and present danger of the situation, polling of the general Taiwan public suggests that the vast majority of citizens still feel like an attack or an invasion by China is unlikely. Similar majorities suggest that they would be willing to fight in Taiwan’s defense, but volunteering for military service remains at a minimum.

To maximize safety, Taiwan needs to find ways to strengthen itself in its ability to defend, resist, and deter China, while still avoiding any appearance of moving toward permanent independence or any other action that could be deemed by Beijing as a provocation, says Diamond.

What the United States Can Do

When it comes to the defense of Taiwan, the strategic crutch hobbling the United States is geography. Most of the U.S. Pacific forces are not in Asia. The majority are in Hawaii and California, as well as a few bases and airfields in Japan. To be able to effectively deter China, the U.S. needs far greater forward deployed military capability in order to be able to either stop or stall the movement of Chinese troops into Taiwan, says Mastro.

Taiwan needs greater onshore military deterrence capabilities as well. One such strategy is the “porcupine approach,” which increases the number of smaller mobile lethal weapons. By Larry Diamond’s assessment, increased citizen participation in military training is also crucial, with an emphasis on weapons training and urban defense tactics. The U.S. could support these aims by overhauling the current system for weapons procurement to speed up the production and delivery of weapons systems not just for Taiwan, but to the benefit of U.S. defense and other contingencies as well. Working with leadership to create strategic stockpiles of food, and energy should also be a priority, says Diamond.

The U.S. also needs to put much more effort into its diplomatic efforts on behalf of Taiwan. Many U.S. allies and partners are reluctant to ostracize China because of economic ties and concerns over sparking their own conflict with China in the future. A key ally in all of this is Japan. If Japan fights with the United States on behalf of Taiwan, it is a guaranteed win and enough to effectively deter China. But much more needs to be done much more quickly in order to secure those guarantees and present them in a convincing way to Beijing.

“The clock is ticking,” Larry Diamond says. “And the problem is we don’t know how fast it’s ticking. “Taiwan is moving in the right direction. But we need to move faster than we're moving.”

Click the link for a transcript of "Putin's Failed War."

The following commentary from Michael McFaul has been excerpted from his original conversation and edited for length and clarity.

Russia and China’s Relationship

Publicly, there’s still support and solidarity between XI Jinping and Vladimir Putin. But we have to look at what’s happening between the lines. I think it’s pretty tense. At the most recent Shanghai Cooperation Summit in Kazakhstan, Putin acknowledged that one of his agenda items was to address Chinese concerns about what he called “the Ukraine crisis.”

“Concerns” is not a very friendly word. In the Russian readout of that meeting, Putin expressed his appreciation for Xi’s “balanced approach” to Russia’s operations in Ukraine.  But a “balanced approach” is hardly a big sign of support. In the Chinese readout of the meeting, Xi doesn’t even mention Ukraine.

I think the Chinese are shocked, quite frankly, by how poorly the Russian Armed Forces are performing. So many countries, China and the U.S. included, assumed that Russia had the world’s third most powerful military. But it turns out that just counting tanks and the GDP per capita spend on your military does not capture the full extent of its capabilities. If you’re China and you thought you had a loyal, powerful partner, I think this is raising a lot of doubts right now.

Conflict, Economics, and Energy

I have a hard time thinking of a single Russian living in Russia, who's benefiting from this war.

Some people say that sanctions aren’t working. Right now the aggregate numbers do look good for Russia, and that’s because the price of oil and gas went up as a result of their war. But that’s only a short-term gain.

Over 1,000 Western companies have left. That means the innovation, that technology that comes with those companies is also being pulling out. When Exxon Mobil pulled out of Russia, that means technology for their oil industry that we would have been seeing the results of for decades and the future is going to be lost.

And it’s important to remember that the biggest sanctions haven't come yet. Those will happen in December when the Europeans are going to reduce their imports of gas from Russia by a significant amount, and the G7 countries are going to lead an effort to put a price cap on all exports of Russian oil.

Russia thinks it can use energy to blackmail Europe and the West. I think they’ve miscalculated on this. I think they're underestimating the reaction many Europeans might have to being coerced. Nobody likes to be extorted. Nobody likes to be blackmailed.

I thinks it’s a basic psychological thing that when someone is trying to extort you, your response is not going to be, “Oh my goodness, we’ve got to lift sanctions and be friends with this guy that's freezing us.” I think it will be just the opposite, that people are going to be a little colder and be willing to pay a little more to get back at the guy who tired to do this to them.

The War Ahead

I sometimes get accused of being a warmonger. I see it exactly the opposite. Putin will not stop fighting until the Ukrainian army stops him on the battlefield. So if we really want peace in Ukraine, we must continue to arm the Ukrainians.

Putin has already radically failed in this conflict. He thought the Russian army would be embraced as liberators, and it didn’t happen. He thought he could take Kyiv, and it didn’t happen.

This is a horrific war. The Russian Armed Forces attack civilian targets. That's terrorism. I'm not an expert; I don't know what the exact definition of terrorism is, but that feels like a terrorist act to me. They're not counter attacking the Ukrainian Armed Forces. They're literally trying to shut down the electricity grid and literally trying to drown people.

Putin doesn't care about basic human existence, and he's demonstrated that by the way he is fighting and by the way he is shipping innocent people into his country. He doesn't play by basic rules of the game that we thought were in place after 1945.

A month or two into the war, the Ukrainian government in Kyiv was talking in a much more limited way. Now that they've had these achievements and these victories, they're much more optimistic about their capabilities. And who are we to judge whether they're right or wrong? Because we've been wrong in judging their capabilities several times before. So, who am I to say, and who is anybody to say, that they don't have the capabilities to achieve these bigger objectives?