Humanitarian advocacy aims to influence policies and actions that better address the needs of vulnerable populations. It encompasses efforts made before, during, and after crises to protect rights and access to assistance. Advocacy goals include ensuring respect for humanitarian principles, protecting affected communities, and supporting an effective humanitarian system. Advocacy approaches can be direct with policymakers or indirect by building public support. Strategies consider objectives, target audiences, appropriate messages and tactics, and monitoring frameworks. Challenges to advocacy include balancing operational risks with speaking out, and representing population needs amid crowded policy environments.