In 2022, Russia invoked Articles V and VI of the Biological and Toxin Weapons Convention (BTWC), requesting a formal meeting to discuss, and subsequent investigation of, alleged U.S.-funded biological weapons laboratories in Ukraine. Such allegations have been dismissed as false by scholars and diplomats alike, many of whom have argued that Russia’s actions represented an abuse of BTWC provisions and risked undermining the Convention. However, few scholars have assessed the implications of Russia’s ongoing efforts to level false allegations in BTWC meetings following the Article V and VI procedures. Using mixed-methods analysis of BTWC meeting recordings, transcripts, and documents, we assessed the volume, consequences, and framing of Russian false allegations at the BTWC Ninth Review Conference. Analysis revealed that discussion of Russian allegations took over three hours and contributed to a stunted Final Document. Additional potential consequences are discussed, including increased division among states parties and the erosion of nonproliferation norms.

In the absence of a treaty protocol or verification regime, the Biological and Toxin Weapons Convention (BWC) instituted confidence-building measures (CBMs) as a mechanism to increase confidence in compliance by enhancing transparency and mitigating ambiguities regarding states parties’ biological activities. While a promising tool to support treaty compliance, low participation, concerns regarding the completeness and accuracy of CBM submissions, a dearth of analysis, and restricted access to many submissions have limited CBMs’ value. Through interviews with 53 international experts—38 from BWC delegations and 15 independent experts—we identified concrete opportunities to increase CBMs’ value while mitigating the burden on states parties. This study supports states parties’ efforts in the BWC Working Group on the Strengthening of the Convention, as part of a series of research on BWC assurance that aims to characterize challenges around BWC verification and increase certainty in BWC compliance.