Articles

Recent quantitative scholarship uses warhead counts to examine whether nuclear superiority offers political or military benefits beyond having a secure second-strike capability. These analyses overlook other elements of a state’s nuclear capability such as state perceptions and beliefs.

The costly Ground-based Midcourse Defense system remains unproven and unreliable in deterring North Korea’s threat to use intercontinental ballistic missiles. An airborne boost-phase intercept system may offer an alternative defense against North Korea without threatening Russian or Chinese deterrents.

Could a conventional war between China and the United States escalate to the nuclear level? An assessment of three mechanisms of China-U.S. inadvertent escalation—use-it-or-lose-it, unauthorized/accidental, and damage limitation—concludes that the risk of China-U.S. inadvertent nuclear escalation is extremely low.

Technological innovation and widespread deployment of clean-energy technologies in emerging economies are critical for a global clean energy transition. Success or failure in this endeavour will have long-term energy and carbon consequences. A fundamental question exists about whether, and how, emerging economies can accelerate clean-energy transitions, given the unprecedented scales of their impending socio-economic and infrastructure transitions, and often-underdeveloped technological innovation capabilities and supporting finances. 

China has the world’s largest army. Russia wields the most tanks. America owns the fanciest satellites. But who has the most cyber-power? A new National Cyber Power Index by the Belfer Centre at Harvard University ranks 30 countries on their level of ambition and capability. Offensive cyber-power—the ability to do harm in or through computer networks—is one measure. But so too are the strength of a country’s defences, the sophistication of its cyber-security industry and its ability to spread and counter propaganda.

As conventional wisdom goes, experts tend to rank the U.S ahead of China, U.K., Iran, North Korea, Russia, in terms of how strong it is when it comes to cyberspace. But a new study from Harvard University’s Belfer Center shows that China has closed the gap on the U.S. in three key categories: surveillance, cyber defense, and its efforts to build up its commercial cyber sector.

“A lot of people, Americans in particular, will think that the U.S., the U.K., France, Israel are more advanced than China when it comes to cyber power,” Eric Rosenbach, the Co-Director of Harvard’s Belfer Center, told CyberScoop. “Our study shows it’s just not the case and that China is very sophisticated and almost at a peer level with the U.S.”

The administration of President Donald J. Trump has consistently used fear of China to undermine nearly five decades of bipartisan consensus on US–Russian nuclear arms control. The negative consequences of these actions may last far beyond the Trump presidency. If generations of agreement between Democrats and Republicans on bilateral nuclear treaties with Russia erode, it will pose a significant setback to US national security and global stability. Future leaders may ultimately need to consider new approaches to nuclear risk reduction that preserve the benefits of the arms control regime.

In his new book, Do Morals Matter? Presidents and Foreign Policy from FDR to Trump, Joseph S. Nye developed a scorecard to determine how U.S. presidents since 1945 factored questions of ethics and morality into their foreign policy. In an interview, Henry Farrell asked him a few questions to get to the heart of his findings.

As the US government promises to ramp up more Covid-19 testing, an unlikely billionaire is offering to lend help: Jack Ma, cofounder of the Chinese tech giant Alibaba. Ma's philanthropic organization, the Jack Ma Foundation, said early Friday morning it would donate 500,000 Covid-19 testing kits and 1 million protective face masks to the US.

The arguments in favor of the United States' declaring that the only purpose of its nuclear weapons is to deter others who possess them from using theirs — in other words, that in no circumstances will this country use nuclear weapons first — are far stronger than the arguments against this stance. It must be hoped that the next US administration will take this no-first-use step promptly.