Reports & Papers

Russia's 2022 invasion of Ukraine illuminated the long profound shadow of nuclear weapons over international security. Russia's nuclear threats have rightfully garnered significant attention because of the unfathomable lethality of nuclear weapons. However, the use of such weapons in Ukraine is only one way—albeit the gravest— that Russia could challenge the global nuclear order. Russia's influence extends deep into the very fabric of this order—a system to which it is inextricably bound by Moscow's position in cornerstone institutions such as the Nuclear Non-Proliferation Treaty (NPT) and the International Atomic Energy Agency (IAEA). From withdrawing from key treaties to stymieing resolutions critical of misconduct, Moscow has demonstrated its ability to challenge the legitimacy, relevance, and interpretations of numerous standards and principles espoused by the West.

Herzog, Baron, and Gibbons (HBG) thank Haley Daarstad, RyuGyung Park, and Timea Balogh for replicating their 2022 short article in The Journal of Politics. In that article, HBG tested the malleability of U.S. public support for nuclear disarmament, specifically in the context of the 2017 Treaty on the Prohibition of Nuclear Weapons (TPNW). Their survey experiment reveals that––despite majority public support for eliminating nuclear weapons––Americans’ backing of the TPNW can be significantly attenuated by exposure to elite and group cues opposing the treaty. The resultant article has received considerable attention from policymakers and anti-nuclear activists alike. Daarstad, Park, and Balogh (DPB) offer three main substantive points of comment on HGB's article. First, DPB indicate that the results successfully replicate and note that they “do not find any coding errors that undermine the authors’ analysis or conclusions.” Second, DPB show that the findings also replicate when partisan leaners are coded as political Independents. Finally, and most interestingly, DPB conduct gender-based subgroup analysis and show that there are heterogenous treatment effects among male and female respondents in our sample. HBG address each of these points in turn.

By looking beyond solely Iran’s security motivations, this paper by Sahar Nowrouzzadeh seeks to inform more holistic negotiation strategies that can potentially influence Iran’s nuclear decision-making in a manner more favorable to U.S. interests.

Three factors are likely to have contributed to shaping Putin’s decision to launch the invasion one year ago.

The world has grown more dangerous but also less open to arms control measures that could limit some of the dangers. What can be done? Steven E. Miller offers a tour de force overview of both dismal and hopeful trends within arms control over the past decades, in this first paper of a new HCSS series on Arms Control.

The Economic Diplomacy Initiative (EDI) at the Belfer Center for Science and International Affairs is presenting a first-of-its-kind analysis of the makeup of the Commerce Department’s Entity List, by country, by sector, and by year of addition. Starting with raw data made available by the Commerce Department, we manually grouped blacklisted sub-entities at the parent level to give a clearer view of the companies targeted by export controls. While  the Entity List does not include industry tags, we used Federal Register announcements and secondary research to manually assign industry sectors to each entity. The analysis provides a quantitative review of the evolving use of the entity list to shed light on shifting aims of US economic and national security policy.

Harvard Kennedy School (HKS) and the German Council on Foreign Relations (DGAP) convened a strategy group of experts and former government officials from the United States and Europe over the past year to discuss the crisis in the transatlantic relationship and to propose a strategy to revive and strengthen it.

On November 19, 2019, the Belfer Center’s Economic Diplomacy Initiative hosted a national security crisis simulation in the JFK Jr. Forum to a packed audience from the Harvard and MIT communities. 

Drawing on the experience of Belfer Center members who have served in the highest levels of the U.S. government, the event explored the nexus of U.S. economic power and its national security interests.

This report charts some of the major developments in northeastern Syria from the December 2018 withdrawal announcement up until the start of Operation Peace Spring on 9 October 2019. It describes and notes the significance of the bitter dispute between Ankara and Washington over a proposed "safe zone," analyses how the Syrian Democratic Forces (SDF) have sought to navigate the crisis and gauges the strength of the so‑called Islamic State (IS) in Syria. Providing this context enables this report to selectively incorporate more limited analysis on the latest and most pertinent developments in northeastern Syria at the time of this writing.