This Symposium, will be jointly organized by the Global Soil Partnership (GSP), the Intergovernmental Technical Panel on Soils (ITPS), the Global Soil Biodiversity Initiative (GSBI) and the UN Convention on Biological Diversity (CBD) and the Science-Policy Interface of the United Nations Convention to Combat Desertification (SPI - UNCCD).  The Global Symposium on Soil Biodiversity will bring together international experts with the aim of reviewing the status of knowledge on soil biodiversity and ecosystem services, the sustainable use and conservation of soil biodiversity, and the contributions of soil organisms to the Sustainable Development Goals (SDGs).