This policy brief is the product of testing, learning and adapting a mainstreaming approach to resilient development in the Pacific. It is based on an in-depth review and analysis of global and regional literature on approaches to mainstreaming, climate change and disaster risk management and governance reform. It draws on extensive testing of mainstreaming approaches in four countries (Solomon Islands, Vanuatu, Fiji and Tonga) carried out through the Pacific Risk Resilience Programme (PRRP).