During the GBV core concepts training for key opinion leaders, REBHI adopted a sustainable and cost-effective mass sensitization methodology where ten (10) volunteers each from Jere and Monguno, consisting of 5 male community leaders and 5 female women leaders volunteered to conduct the house to house sensitization visits on GBV behavior change at IDP camps and host communities in Jere and Monguno during which key messages on GBV and COVID-19 prevention are disseminated.