In Asia Pacific, the Partners for Prevention (P4P) - an inter-agency initiative of UNDP, UNFPA, UNIFEM, now part of UN Women, and UNVs- which works with men and boys to prevent gender-based violence– has developed a comprehensive set of research tools on gender-based violence, including questionnaires, research protocols, and training manuals for the “Gender-based Violence Prevention and Masculinities” Collaborative Research Project for Asia and the Pacific. These tools have been shared with partners in Bangladesh, Cambodia, China, Indonesia and Papua New Guinea. In Cambodia, the research findings on GBV and masculinities are informing a public awareness campaign. P4P is also developing the capacity of national partners in China, Indonesia, Cambodia, Bangladesh, and Papua New Guinea to conduct research in this area, in order to develop evidence-based programs and policy initiatives to address GBV across the region. Networks of practitioners have been established in South Asia and Southeast & East Asia to support the civil society and UN advocates to implement initiatives on GBV prevention through work with men and boys.