The primary objective of this PDF Activity is the preparation of a Transboundary Diagnostic Analysis (TDA) to identify the principal shared problems and their root causes, as well as national, regional and, particularly, transboundary priorities in the region. This will provide the basis for the subsequent development of an agreed regional Strategic Action Programme (SAP) for the solution of the identified problems, and the development of the Full Project. The project will maintain close linkages with mechanisms developed to address land and water-related environmental issues in the major river basins draining to the LME (Senegal, Volta) and the neighbouring GEF International Waters projects (Guinea Current LME, Benguela Current LME). It is closely related to the regional implementation of the Global Programme of Action for Protection of the Marine Environment from Land-Based Activities, relevant components and protocols of the Abidjan Convention and those of the Accra Ministerial Declaration.