Anti-trafficking slavery using Satellite Technology for Uganda's Sustainability (ATSUS) Poverty, conflict, and gender inequality have fuelled the ever-growing global issue of Modern Slavery and Human Trafficking (MSHT). The United Nations (UN) Sustainable Development Goals (SDGs) have been designed to tackle a number of development issues; UN SDG Target 8.7 directly challenges the international community to end MSHT for all by 2030. Meeting this SDG Target 8.7 is essential as MSHT associated activities act as a major barrier to meeting many of the other UN SDGs. This project aims to tackle the issue of MSHT by developing a stakeholder-informed data-driven Earth Observation (EO) approach to support anti-MSHT efforts in Uganda. As an UN Alliance 8.7 Pathfinder Country, the Uganda Government is committed to meeting SDG Target 8.7 and ending MSHT. However, there is a major data deficit in reliable prevalence and vulnerability mapping and estimation of MSHT and associated indicators, particularly within country. This data deficit limits our understanding of the complex issues surrounding MSHT and restricted present anti-MSHT activities and risk management in Uganda. This project's proposed space-based solution is the development of a Modern Antitraffickingslavery Support System (MASS). MASS comprises four principal processing nodes that require input from satellite EO data and each providing output products that will be either ingested into another node or be for the end-user to use for informed anti-MSHT decision-making and response. Ensuring stakeholder buy-in and sustainability of the MASS underpins this project's activities and are crucial steps in supporting the Ugandan Government in its antitraffickingslavery efforts and progress towards SDG Target 8.7. Poverty, conflict, and gender inequality have fuelled the ever-growing global issue of Modern Slavery and Human Trafficking (MSHT). The United Nations (UN) Sustainable Development Goals (SDGs) have been designed to tackle a number of development issues; UN SDG Target 8.7 directly challenges the international community to end MSHT for all by 2030. Meeting this SDG Target 8.7 is essential as MSHT associated activities act as a major barrier to meeting many of the other UN SDGs. This project aims to tackle the issue of MSHT by developing a stakeholder-informed data-driven Earth Observation (EO) approach to support anti-MSHT efforts in Uganda. As an UN Alliance 8.7 Pathfinder Country, the Uganda Government is committed to meeting SDG Target 8.7 and ending MSHT. However, there is a major data deficit in reliable prevalence and vulnerability mapping and estimation of MSHT and associated indicators, particularly within country. This data deficit limits our understanding of the complex issues surrounding MSHT and restricted present anti-MSHT activities and risk management in Uganda. This project's proposed space-based solution is the development of a Modern Antitraffickingslavery Support System (MASS). MASS comprises four principal processing nodes that require input from satellite EO data and each providing output products that will be either ingested into another node or be for the end-user to use for informed anti-MSHT decision-making and response. Ensuring stakeholder buy-in and sustainability of the MASS underpins this project's activities and are crucial steps in supporting the Ugandan Government in its antitraffickingslavery efforts and progress towards SDG Target 8.7.