Institutions in South-East Europe are increasingly making efforts to mainstream the gender perspective across arms control frameworks, providing a blueprint for more gender-responsive policy solutions and contributing to more resilient communities. Elaborating on such experiences, this brief provides an overview of key evidence which has shaped arms control debates in the region and facilitated making a case for mainstreaming gender in small arms control. The brief further outlines practical strategies for gender mainstreaming and highlights the importance of gender analysis in enhancing the gender responsiveness of arms control. Finally, it discusses policy implications of bringing gender perspectives into arms control policies as well as ways forward.