러시아ㆍ유라시아

Russian nuclear threats have cast a long shadow over the war in Ukraine. As the conflict enters its third year, it is crucial to understand the objectives of Russia’s nuclear signaling at various stages and the effectiveness of U.S. and allied responses thus far. To explore these issues, the CSIS Project on Nuclear Issues recently compiled a database and released a digital report Russian nuclear narratives and their evolution during the first 18 months of the war.[1] This brief builds on that work and finds that Russian officials noticeably calibrated their nuclear signaling at key points in the war. It also concludes that the risks of nuclear use will likely rise if Russia faces significant battlefield setbacks in the future or the conflict expands in new or unexpected ways. Accordingly, Washington should work to maintain international pressure against nuclear use in Ukraine while combatting narratives that downplay or rationalize Russia’s nuclear threats.