Nuclear Issues

Assaf Zoran examines the dynamics of Iran's shift from operating in the shadows or behind partners and proxies to directly attacking Israel and Pakistan.

Assaf Zoran argues that an attack on Iran's nuclear facilities may have the opposite result of prompting an escalation in Iran’s nuclear developments, a pattern previously observed in response to kinetic actions attributed to Israel.

Mohammad Tabaar analyzes Iran's strategy to weaken Israel and divide the Middle East.

This year's G7 summit in Hiroshima sees nuclear disarmament and non-proliferation sitting high on the agenda, amid rising tensions between the nuclear states and an increasingly divided international order.  Six contributors offer their analyses, including the Belfer Center's Mayumi Fukushima.

Abolghasem Bayyenat argues that without the JCPOA restrictions in place, Iran's nuclear program will expand and continue to acquire irreversible technical knowledge and competencies.

In light of Russia’s annexation of Crimea and its current threat to Ukrainian sovereignty, it’s fair to ask: What is the significance now of the Budapest Memorandum?

Abolghasem Bayyenat argues that rather than insisting that the JCPOA be restored strictly in its original form and implemented per its letter, the parties should seek to redress the agreement's imbalance in regard to its enforcement mechanisms and delivery of its economic benefits.

While China is building nuclear reactors faster than any other country in the world, major constraints may limit nuclear energy’s ability to grow to the scale of hundreds of gigawatts that would be required for it to play a major part in decarbonizing China’s energy system. This chapter explores the major constraints on, and risks of, large-scale nuclear energy growth in China, and how both new policies and new technologies might address them. It focuses particularly on the two biggest constraints – economics and siting. Substantial government policies to support nuclear power and advanced reactor systems designed to address some of the key constraints are both likely to be needed for nuclear to have a chance of playing a major role in decarbonizing China’s energy system; nuclear energy’s role may be bigger in the second half of this century than in the first half.

The regime built around the 1970 Treaty on the Non-Proliferation of Nuclear Weapons (NPT) has helped curtail the spread of nuclear arms for fifty years. In hindsight, it is remarkable only nine states possess the world’s most powerful weapon. The NPT achieved much success during Cold War bipolarity and U.S. unipolarity in its aftermath. But today, China’s rise and Russia’s resurgence have ushered in a new era of emerging multipolarity. Can the treaty withstand the potential challenges of this dynamic environment? There is a real risk that multipolarity may shake the scaffolding of the nonproliferation regime, presenting a significant test to the NPT’s durability. This article identifies four essential elements of the nonproliferation regime: widespread membership, adaptability, enforcement, and fairness. History suggests bipolarity and unipolarity in the international system largely sustained and promoted these NPT features. When international regimes lack such elements, it sharply curtails their long-term efficacy.

Creating the conditions for the CTBT to enter into force has eluded the international community for the past 25 years. Since the CTBT opened for signature in 1996, the geopolitical landscape has only deteriorated.