Nuclear Issues

On August 6, 1945, the United States dropped an atomic bomb on Hiroshima, Japan, launching the nuclear age. On the 75th anniversary of that somber event, Belfer Center experts reflect on the event and its aftermath. 

Rebecca Davis Gibbons and Stephen Herzog provide an update on current efforts to eliminate nuclear weapons. 

The United States and Russia have about 91% of the world's nuclear warheads. And the arms control pact — the New START Treaty — between the two nations expires next year. Matthew Bunn spoke with The World's Marco Werman about the implications of the treaty.

The Bulletin of Atomic Scientists has published a document from the Pugwash Conference on Science and World Affairs concerning nuclear problems and tensions in the time of COVID-19. The document has been co-signed by a large number of Pugwash colleagues and personalities.

With the Russia investigation and impeachment behind him, President Trump finally may feel empowered to engage with Russian President Vladimir Putin and pursue an arms control deal.  

Putin is rumored to prefer focusing on foreign policy, where the Kremlin has proved itself to be a skilled player, while finding structural problems at home too boring to focus on. However, unless these are solved, he or his successor will continue to confront the reality that Russia remains too far behind the United States and China economically and demographically to be a true peer to these countries in the changing global order.

As we are all well aware, the original Cold War, which officially ended 40 years ago this month, featured a number of close calls that almost turned it into a hot war. Thankfully, neither the Cuban Missile Crisis of 1962 nor the Able Archer exercise of 1983 (nor any other perilous incidents), led to a war between Washington and Moscow. More recently, however, respected statesmen have again begun to sound alarms. “Not since the 1962 Cuban Missile Crisis has the risk of a U.S.-Russian confrontation involving the use of nuclear weapons been as high as it is today,” former U.S. Energy Secretary Ernest Moniz and former U.S. Sen. Sam Nunn warned in a recent article in Foreign Affairs. I have expressed some doubts about this proposition, but it is nevertheless worth asking what it is—other than the fear of mutually assured destruction—that keeps the U.S. and Russia from stumbling into a war today or tomorrow. Part of the answer lies in the bilateral and multilateral agreements specifically designed to prevent incidents that could escalate into a war. 

It seems unlikely that Russia will again possess the resources to balance U.S. power in the same way that the Soviet Union did during the four decades after World War II. But declining powers merit as much diplomatic attention as rising ones do. Joseph S. Nye worries that the United States lacks a strategy to prevent Russia from becoming an international spoiler.

Former U.S. Energy Secretary Ernie Moniz and former U.S. Sen. Sam Nunn argue in a new Foreign Affairs article that the threat of nuclear war between Russia and the U.S. is higher now than at any point since the Cuban Missile Crisis.

With the historic INF Treaty more than likely to terminate, and the future of New START in doubt, what guiding principles for interstate nuclear arms control can we hope for? Of eight U.S., Russian, European and Chinese experts surveyed by Russia Matters, most agree that bilateral agreements between the world’s two nuclear superpowers still have a role to play in any new arms control regime, but they differed considerably on the nature of that role.