In this episode of The Arms Control Primer, host Dr Alexander Bollfrass speaks with Dr Polina Sinovets and Darya Dolzikova about Ukraine’s nuclear history, from its role in the Soviet nuclear weapons programme to relinquishing nuclear arms in the 1990s, examining the Budapest Memorandum, nuclear coercion during Russia’s war against Ukraine, and the lessons this case holds for deterrence, non-proliferation, and security guarantees today.