In order to better understand the impact of armed conflict on men, women, boys, and girls, and changes in gender roles and relationships at household and community levels since the onset of conflict in March 2015, Oxfam, CARE and GenCap in Yemen collaborated to collect and analyse available data, with a view to further informing immediate humanitarian response as well as longer-term programming in Yemen. Sound understanding of the differential impact of the conflict on women, men, boys, and girls, helps us adapt our programming to specific life circumstances, capacities and vulnerabilities of men and women, but also to recognize entry points for transformative gender-specific actions that will respond to inequality and injustice in the future. [57 pages]