These two studies, produced with the support of the Global Environment Facility (GEF6) and the United Nations Environment Programme (UNEP), provide a comprehensive diagnosis of the legislative and institutional readiness of Nigeria and Senegal for the success of national action advanced under the Great Green Wall initiative. Even ahead of their launches in Abuja and Dakar, their findings have been informing the work of legislators in both countries to address the gaps identified, including cross-departmental coordination, funding and financing mechanisms, involvement of sub-national authorities and land tenure issues. For more information, please visit the GEF6 project sub-site https://gef6.globelegislators.org/.