Nuclear Issues

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.

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?

The Memorandum on Security Assurances in Connection with Ukraine’s Accession to the Treaty on the Non-Proliferation of Nuclear Weapons (NPT), signed in 1994 by Ukraine, and the three NPT depositary states, the United States, United Kingdom and Russian Federation, is not a ratified, legally binding treaty, but a set of high-level political commitments. Its significance is in explicitly linking Ukraine’s sovereignty and security to the NPT, and the basic bargains enshrined in it. The NPT’s depositary states gave Ukraine security assurances in exchange for Kyiv’s renunciation of the world’s third largest nuclear weapons arsenal. Moscow’s manifest violation of this deal when it invaded Ukraine in 2014 not only eroded European security. It has also undermined the rationale of the international nonproliferation regime. While not directly related to the question of the North-Atlantic Alliance’s enlargement, Russia’s disregard for the NPT’s logic has, since 2014, escalated Ukrainian critique of NATO’s insufficient engagement in Eastern Europe, during the last quarter of a century.

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.

From the 1950s, after a brief stint at the fledgling United Nations, Timerbaev was directly supporting Soviet Foreign Minister Andrei Gromyko on nuclear weapons issues. (He remembered drafting the first Soviet proposal for a fissile material cutoff treaty in 1958.)  Preventing nuclear annihilation became his consuming, life-long passion. He retired from the Foreign Ministry just as the Soviet Union was collapsing, resigning as permanent representative to the international organizations in Vienna, including, of course, the International Atomic Energy Agency (IAEA).