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.   

This commentary originally appeared in Shukan Toyokeizai.

Military tensions between China and Taiwan rise, and the U.S. government informs the Japanese government that it wants to deploy U.S. forces in Japan to defend Taiwan. At the same time, China sends a message through various channels that it will not touch Japan at all if it does not cooperate with the U.S. military and remains neutral.

In the event of a Taiwan contingency, It is highly likely that military conflict between China and Taiwan will lead to a decision by the U.S. military to intervene, followed by the deployment of fighter jets and naval vessels from U.S. military bases in Japan. In the process, Japan will be forced to make a major choice. 

If U.S. forces are deployed to the area around Taiwan, U.S. bases located in Japan, including Okinawa, will serve as bases. Under the so-called “Far East Clause” of Article 6 of the Japan-U.S. Security Treaty, U.S. forces can use Japanese facilities and areas “to contribute to the maintenance of international peace and security in the Far East.” However, the deployment of U.S. forces under the Far East Clause requires prior consultation with the Japanese side. Nevertheless, there is little chance that the Japanese government will turn the US down for fear of a confrontation with China. If Japan were to refuse at the last minute, the trust between Japan and the U.S. would be damaged, and the Japan-U.S. Security Treaty regime would effectively collapse. As a result, Japan would have no choice but to confront China alone. This would be a bad move that would only be a temporary fix. 

However, some officials from the Ministry of Defense and the Self-Defense Forces are concerned about how the public would react. From China's point of view, this is a point to take advantage of, and by communicating that "Japan will be safe if it declares its neutrality," it may be able to divide Japan, the U.S., and Taiwan. 

The phrase "a Taiwan contingency is a Japan contingency" was introduced by former Prime Minister Shinzo Abe at a symposium sponsored by a Taiwanese think tank in 2006. This comment was followed by the statement, "It is also a contingency for the Japan-U.S. alliance." How will Japanese public opinion react to the "ultimate choice" in the face of a Taiwan contingency? 

An interesting study, part of the Stanford Japan Barometer, conducted by Stanford University sociologist Kiyoteru Tsutsui and his colleagues examined this issue using a method called conjoint experiments. 

The subjects were presented with two scenarios: "In the event of an emergency in Taiwan, under what circumstances would you be more likely to support military involvement by the Self-Defense Forces?" The subjects were presented with two scenarios and asked to choose the one in which they would be more likely to support Japan's military involvement. 

In the event of a Taiwan contingency, the researchers presented three options in each of five categories: "Chinese actions," "U.S. actions," "Chinese actions toward Japan," "U.S. actions toward Japan," and "international community reaction. In an experiment in which each of more than 7,000 subjects was asked to answer which of two scenarios in which they were randomly combined would support Japan's military involvement in the event of an emergency in Taiwan. The series of scenarios reflect the opinions of security experts who participated in simulations of a Taiwan contingency conducted by various agencies in the United States. The results show whether support for Japan's military involvement strengthened or weakened when each scenario was presented.

One of these scenarios is precisely related to the aforementioned issue. When China promised Japan that it would not touch Japanese territory, including the Senkaku Islands, support for Japan's military involvement weakened. On the other hand, if China landed on and occupied the Senkaku Islands at the same time as its invasion of Taiwan, support for Japan's military involvement increased. The result is clear: "Japanese people place the highest priority on the impact on Japanese territory," said Professor Tsutsui. 

The survey results indicate that Japan is hesitant to fight China but would respond to a request from the U.S. military for logistical support. How will Japan be involved in a Taiwan contingency? Public opinion is not yet settled. 

In reality, many experts believe that if U.S. forces deployed from bases in Japan clash with Chinese forces, the next request will be for cover by the Self-Defense Forces. It is quite a narrow pass to say that they will not participate in combat and only provide logistical support. 

As for why Japan should get involved in a Taiwan contingency, the debate tends to settle on supply chain issues, particularly in the area of semiconductors, or geopolitical importance. Many Japanese, however, may feel that such reasons alone are not sufficient to make a decision to put the lives of Self-Defense Force personnel on the line and the residents of the Nansei Islands at risk. 
The supply chains that Japanese firms have built in East Asia, including China, would also be severely damaged. In addition, Chinese nationalism would flare up violently if it were to fight Japan again. The cost of fighting China as a neighbor is extremely high for Japan. 

Where Did You Get the Money To Pay for the Succession?
 

The issue of money is also unavoidable. In order to prepare for contingencies, we must also consider financing the cost of war. 

If the armed conflict with China is prolonged, huge fiscal outlays will be required not only for the continuation of the war but also for the repair of domestic infrastructure. In addition to supplementary budgets, it will be necessary to issue government bonds. 

However, Japanese financial institutions alone may not be able to digest the Japanese Government Bonds. For this reason, a simulation by the Japan Strategy Research Forum this year called for the direct underwriting of Japanese Government Bonds by the Bank of Japan. 

Junichi Kanda, a Bank of Japan alumnus in the House of Representatives who served as finance minister, opposed this proposal, saying, "It would cause a sudden loss of confidence in Japan's finances and the yen, leading to a significant depreciation of the yen to over 300 yen to the dollar and an increase in interest rates to over 10%. Such an extreme depreciation of the yen would also hinder the purchase of equipment and materials in foreign currency. 

Instead, Kanda suggested issuing foreign currency-denominated government bonds for foreigners. However, since there has been no such issuance since 1988, it is necessary to gradually issue these bonds from normal times to develop investors, he said. 

The prerequisite is that confidence in Japan's finances is secured. Japan needs to maintain fiscal discipline on a regular basis in case of emergency," said Kanda. Even in peacetime, there is a strong argument in Japan for using government bonds as a source of funds for increased defense spending. If the government cannot even raise taxes, China will question its seriousness. More open and substantive discussions are needed if the Japanese people are to be convinced to accept the costs of a Taiwan contingency.

This is an English translation of an article originally published by The Asahi Shimbun. 

Stanford University Professor of Sociology Kiyoteru Tsutsui is a recipient of the Suntory Prize for Arts and Sciences and the Ishibashi Tanzan Prize for his book Human Rights and the State (Iwanami Shinsho, 2022). Although he has published many works in English, this was his first publication in Japanese. After earning a master's degree at Kyoto University, he moved to the United States. Before Stanford, he served as a professor at the University of Michigan. “I wanted to make a difference in the United States first,” he says. “I had not thought about publishing in Japanese.”

However, since he joined Stanford in 2020 and has undertaken the role of director of the Japan Program at the University's Asia-Pacific Research Center (APARC), Tsutsui has become increasingly aware of the importance of Japanese studies and publishing in Japanese. He recognizes the decline of Japanese studies and the necessity of revitalizing the field and connecting Japan and the United States. Tsutsui is currently the only professor of Japanese studies at APARC. In the 1990s, there were three or four faculty experts in Japanese studies at the center.

With the popularity of Japanese anime, manga, video games, and other forms of Japanese culture, the number of Japanese-language students in the United States is not decreasing," notes Tsutsui. However, “the departure from Japan in the social sciences is severe.” The reason for this, according to Tsutsui, is that area studies are declining, and there is an increasing emphasis on theories and models. “But Chinese studies are growing, and the subjects of German, French, and other area studies maintain interest.” In 2019, a session titled "The Death of Japanese Studies" was held at the North American Association for Asian Studies, attracting much attention.

Tsutsui worries that the declining interest in Japanese studies could negatively impact public opinion and policymaking toward Japan in the United States. For example, during the Japan-U.S. trade friction of the 1980s, the Japan-U.S. relationship was hardly a focus of Japanese studies scholars in the United States.

Tsutsui works to advance U.S.-Japan dialogue, promote Japanese studies research, and clear up misunderstandings about Japanese affairs. Last year, he launched the Stanford Japan Barometer (SJB), a periodic public opinion survey on political, economic, and social issues concerning contemporary Japan — a project he started in hopes of fostering young researchers’ interest in Japan.

“We have already researched gender and policy and the Taiwan contingency and security,” he says. “In the future, we will continue to cover a wide range of topics in Japanese politics, economy, and society, including techno-media, artificial intelligence, Japan’s declining birthrate, and its Constitution.” Unlike a typical public opinion survey, SJB focuses on types of questions that move people’s opinions. Therefore, SJB asks questions on different issues with different assumptions, comparing people’s responses.

In the case of the questions on same-sex marriage, the respondents randomly received one of eight explanations, such as “In Japanese society, it is a tradition to see marriage as a heterosexual relationship” and “In Japanese society, there is a tradition of toleration towards same-sex relationships stemming back from the Sengoku Period.” The study examined the difference between respondents who received no explanation and those provided with arguments supportive of same-sex marriages. “Our results showed that respondents tend to become more supportive of same-sex marriage when presented with an argument that not allowing same-sex marriage is unfair from the point of view of human rights and gender equality,” Tsutsui explains.

“I hope that many young scholars will eventually participate in the project and that it will provide an opportunity for the next generation of outstanding researchers to enter Japanese studies and increase their opportunities to work abroad.”