Articles

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People watch a TV showing a file image of North Korean leader Kim Jong Un shown during a news program

AP/Ahn Young-joon

Journal Article - Ethics & International Affairs

Nuclear Ethics Revisited

| Spring 2023

Scott Sagan asked Joseph S. Nye to revisit Nuclear Ethics, a book he published in 1986, in light of current developments in world affairs. In doing so, he found that much had changed but the basic usability paradox of nuclear deterrence remains the same. 

A security guard stands near a sculpture of the Chinese Communist Party flag at the Museum of the Communist Party of China on May 26, 2022, in Beijing.

AP Photo/Ng Han Guan

Journal Article - Quarterly Journal: International Security

Strategic Substitution: China’s Search for Coercive Leverage in the Information Age

    Author:
  • Fiona Cunningham
| Summer 2022

After the mistaken U.S. bombing of the Chinese Embassy in Belgrade in 1999, China turned to information-age weapons to create a risk of escalation to nuclear war with the United States. This shift helps compensate for its conventional military inferiority.

an alert from the Department of Homeland Security's Cybersecurity and Infrastructure Security Agency

AP/Jon Elswick

Journal Article - Foreign Affairs

The End of Cyber-Anarchy?

| January/February 2022

Joseph Nye argues that prudence results from the fear of creating unintended consequences in unpredictable systems and can develop into a norm of nonuse or limited use of certain weapons or a norm of limiting targets. Something like this happened with nuclear weapons when the superpowers came close to the brink of nuclear war in 1962, during the Cuban missile crisis. The Limited Test Ban Treaty followed a year later.

Journal Article - Small Wars Journal

Twilight Zone Conflicts: Employing Gray Tactics in Cyber Operations

| October 27, 2016

"...[A]ctors that employ gray tactics in cyber operations need not be successful in actually infiltrating a system to further their revisionist ambitions. Rather, the sheer ramifications from the cyber action itself, has the power to disturb a nation's psyche and challenge the geopolitical status quo."

Journal Article - Taylor and Francis Science & Global Security

China's Uranium Enrichment Complex

| October 23, 2015

New public information allows a fresh estimate of China's current and under-construction uranium enrichment capacity. This paper uses open source information and commercial satellite imagery to identify and offer estimates of the capacity of China's 10 operating enrichment facilities, located at 4 sites, using centrifuge technology most likely based on adapting Russian technology. The total currently operating civilian centrifuge enrichment capacity is estimated to be about 4.5 million separative work units/year (SWU/year), with additional capacity estimated to be about 2 million SWU/year under construction. Also China could have an enrichment capacity of around 0.6 million SWU/year for non-weapon military uses (i.e., naval fuel) or dual use. These estimates are much larger than previous public estimates of China's total enrichment capacity. Further expansion of enrichment capacity may be likely since China will require about 9 million SWU/year by 2020 to meet the enriched uranium fuel needs for its planned nuclear power reactor capacity of 58 gigawatts-electric (GWe) by 2020 under its policy of self-sufficiency in the supply of enrichment services.

Chinese President Xi Jinping is displayed on a big screen in Beijing as Chinese battle tanks roll by during a Sept. 3, 2015 parade commemorating the 70th anniversary of Japan's surrender during World War II.

(AP Photo)

Magazine Article - The Atlantic

The Thucydides Trap: Are the U.S. and China Headed for War?

| September 24, 2015

The defining question about global order for this generation is whether China and the United States can escape Thucydides’s Trap. The Greek historian’s metaphor reminds us of the attendant dangers when a rising power rivals a ruling power—as Athens challenged Sparta in ancient Greece, or as Germany did Britain a century ago. Most such contests have ended badly, often for both nations, a team of mine at the Harvard Belfer Center for Science and International Affairs has concluded after analyzing the historical record. In 12 of 16 cases over the past 500 years, the result was war. When the parties avoided war, it required huge, painful adjustments in attitudes and actions on the part not just of the challenger but also the challenged.

Journal Article - Bulletin of the Atomic Scientists

Plutonium Reprocessing, Breeder Reactors, and Decades of Debate: A Chinese Response

| July 1, 2015

Some observers believe that plutonium reprocessing is on the verge of an expansion, while others argue that the end of the practice is in sight. The risk of nuclear proliferation has always been the chief objection to reprocessing but proponents argue that today, with uranium enrichment technology more easily available, reprocessing no longer represents an efficient route toward nuclear weapons...