Experiences of gender violence cause harm and hurt to too many women across the Pacific Islands. For more than three decades, gender activists have drawn attention to this issue and successfully argued for improved state responses to arrest this violence. The reforms have been institutionalised, but ongoing violence shows they frequently fail. Through a study undertaken in three Pacific Island case study settings—Fiji, Bougainville, and Kanak communities in New Caledonia—this book explains why. The analysis approaches regulation as a scaled ecology and examines how gendered geometries of power operate to shape the terrain of rulemaking and rule taking on gender and gender violence in each site. Through the use of innovative photo elicitation methods, this study sheds light on where and how geometries of regulatory power produce constraining outcomes for women. Importantly, it also brings to light the regulatory principles and practices operating at a range of scales that enable women in everyday settings to resist these constraints too.