To reach the targets of the Paris Agreement commitments for land degradation neutrality, for biodiversity, and to support the EU Green Deal, Europe needs to join its research and innovation forces on soil carbon with those around the globe in a coordinated manner. To scale up efforts for conserving and increasing soil carbon stocks and harness the co-benefits for climate change mitigation and adaptation, soil health and food security international coordination of research efforts is essential. In this context the EC supported a 1st Coordination action (CIRCASA) led by INRAE which brought together over 100 key stakeholders and 500 scientists from around the world who formalised an interest in establishing an International Research Consortium (IRC) on Soil Carbon built around an initial strategic research and innovation agenda (SRIA) focusing on agricultural soils. Operationalising the IRC requires further mobilization of the international community of stakeholders working on agricultural soil carbon but also other land uses and therefore expanding the initial SRIA as well as developing with international funding bodies an implementation plan and a central knowledge platform offering services to this community. The main goal of ORCaSa is therefore to launch and roll out the initial operational phases of the IRC on Soil Carbon so that by 2024 the IRC has established an international position as the coordinator of soil carbon research and innovation and related issues at global level offering a unique SRIA and implementation plan, supporting knowledge platform and enable the preparation of a disruptive low cost international recognized MRV system. To reach this overall goal, ORCaSa brings together European partners and 6 regional nodes covering the 5 continents around an ambitious 3-year work plan working hand in hand with the international every step of the way.