The “Debate” section of the Review aims to contribute to the reflection on current ethical, legal or operational controversies around humanitarian issues. In its issue on “Sexual Violence in Armed Conflict” (Vol. 96, No. 894, 2014), the Review published an Opinion Note by Chris Dolan entitled “Letting Go of the Gender Binary: Charting New Pathways for Humanitarian Interventions on Gender-Based Violence”, arguing for a shift in the conceptualization of gender-based violence (GBV) in humanitarian settings from an emphasis on gender equality to an ethos of gender inclusivity. Jeanne Ward's reply, “It's Not About the Gender Binary, It's About the Gender Hierarchy”, was published in a later issue of the Review (Vol. 98, No. 901, 2016). Ward suggested retaining a focus on women and girls in GBV work, while moving forward in partnership with those who wish to accelerate programming directed towards men and lesbian, gay, bisexual, transgender and intersex (LGBTI) communities broadly. In this issue, Dolan responds to Ward's position, pointing to empirical and practical developments that have advanced the understanding of how to effectively respond to GBV, including GBV perpetrated against men, boys and members of the LGBTI community. Dolan calls for the IASC Guidelines to be revised in 2020 to be the guiding text on preventing and responding to GBV in humanitarian settings, and explores what it means to do inclusive gender while also tackling hierarchies.