Analysis / CommentaryA New Nuclear Age?ByReja YounisPublished Aug 20, 2024As the United States enters a “new nuclear age,” the Pentagon’s approach is based on three assumptions: coordinated adversarial behavior, limited nuclear employment, and the failure of arms control. Despite some evidence, none should be considered forgone conclusions.
Analysis / ReportUnderstanding Opportunistic Aggression in the Twenty-First CenturyByKelsey Hartigan, Reja Younis and Lachlan MackenziePublished Jul 31, 2024The United States faces an increasingly contested strategic environment that raises significant, unanswered questions about the role nuclear weapons will play in U.S. national security strategy going forward, and the forces that will be required to deter—and, if necessary, defeat—adversaries. For the first time in its history, the United States must contend with not one…
Analysis / ReportThe Long Shadow: Russian Nuclear Calibration in the War in UkraineByHeather Williams, Kelsey Hartigan, Lachlan Mackenzie and Reja YounisPublished Feb 23, 2024How have Russia’s nuclear narratives evolved over the course of the war in Ukraine? To address this question and evaluate future nuclear risks, the CSIS Project on Nuclear Issues conducted a study on Russian nuclear signaling during the first 18 months of the war.
Analysis / ReportDeter and Divide: Russia’s Nuclear Rhetoric & Escalation Risks in UkraineByHeather Williams, Kelsey Hartigan, Lachlan Mackenzie and Reja YounisPublished Jan 11, 2024Russia’s nuclear threats have underpinned each stage of the war in Ukraine as Putin attempts to deter and divide NATO support. However, if Russia faces battlefield setbacks, its nuclear threats could intensify, testing NATO’s resolve.
Analysis / ReportAlternative Nuclear Futures: Capability and Credibility Challenges for U.S. Extended Nuclear DeterrenceByHeather Williams, Kelsey Hartigan, Joseph Rodgers and Reja YounisPublished May 9, 2023The U.S. extended deterrence could change drastically in the next decade due to increasing nuclear threats from countries such as Russia, China, North Korea, and Iran. The credibility of U.S. security guarantees for its allies is at risk, and the CSIS Project on Nuclear Issues used an “alternative futures” approach to explore how this mission might be affected. In all scenarios explored, the United States faces a credibility problem that will require a new approach to consulting, planning, training, and operating with allies.
Analysis / Next Gen CommunityOn the Horizon Vol. 5: A Collection of Papers from the Next GenerationByReja Younis and Jess LinkPublished Feb 28, 2023The Nuclear Scholars Initiative is a signature program run by the Project on Nuclear Issues (PONI) to engage emerging nuclear experts in thoughtful and informed debate over how to best address the nuclear community’s most pressing problems. The papers included in this volume comprise research from participants in the 2022 Nuclear Scholars Initiative. Series On The Horizon
Analysis On the Horizon Vol. 4: A Collection of Papers from the Next Generation of Nuclear ProfessionalsByReja YounisPublished May 13, 2022The Nuclear Scholars Initiative is a signature program run by the Project on Nuclear Issues (PONI) to engage emerging nuclear experts in thoughtful and informed debate over how to best address the nuclear community’s most pressing problems. The papers included in this volume comprise research from participants in the 2021 Nuclear Scholars Initiative. These papers… Series On The Horizon
Analysis / ReportThe Adversary Gets a VoteByRebecca Hersman and Reja YounisPublished Oct 29, 2021As the Department of Defense (DoD) further develops integrated deterrence as its overarching strategic concept, it will become increasingly important to appreciate the stability risks and benefits associated with emerging intelligence, surveillance, and reconnaissance (ISR) capabilities, from both an arms-race and crisis-management perspective.
Analysis / Next Gen Community, ReportOn the Horizon: A Collection of the Papers from the Next GenerationByReja YounisPublished Feb 23, 2021The papers included in this volume comprise research from participants in the 2020 Nuclear Scholars Initiative and the PONI Conference Series. These papers explore such topics as the impacts of emerging technologies and capabilities, deep-diving on nuclear strategy and national policies, proposing paths forward for addressing proliferation challenges, and enhancing arms control in contentious environments. Series On The Horizon
Analysis / CommentarySurveillance, Situational Awareness, and Warning at the Conventional-Strategic InterfaceByRebecca Hersman and Reja YounisPublished Jan 15, 2021The expansion of dual-capable delivery systems and the diversification of strategic forms of warfare to include cyber, space, and advanced high precision conventional strike capabilities have sharply eroded structural conventional-nuclear firebreaks firebreaks. Series Nuclear Nexus