LET´S CARE aims to understand and improve the caring dimension of educational inclusion and school success. The project will substantiate how student socio-emotional (in)security can promote/hinder educational opportunities from early childhood education to secondary school, and beyond. LET’S CARE will analyse the forms in which family relations and social inequality can explain school (under)achievement, (dis)engagement and early dropout, especially for vulnerable populations, and how building Safe School relationships can be a decisive tool to counteract these dynamics. LET’S CARE concept relies on the following features: i) multistage, including four different educational stages (ECEC, primary, lower and upper secondary and Second Chance); ii) multilevel, considering 4 ecological levels or pillars in relation to school safety (1- individual level (Safe Learning), 2- relational level (Safe Teaching), 3- community level (Safe School), 4- policy level (Safe Education); iii) intersectional research looking into the impact of gender, ethnicity - specially Roma children-, migrant background, socioeconomic status, (dis)ability and (non)parental care; iv) exploring the European diversity by considering different educational contexts (PL, LT, BG, IT, SP, PT). These features will be placed at the core of the research design and will be the basis for the development of a theoretical model of Safe Education, which will be defined and empirically validated. This knowledge will be translated into different tools and methodologies to diagnose and assess the Safe Education framework. LET´S CARE will implement a holistic methodological approach, cocreation mechanisms, and translate research findings into political approach, through formulation of novel evidence-based policy recommendations, raising awareness on safe/caring schools, combating social exclusion of disadvantaged learners. LET´S CARE proposes a revolutionary approach to provide holistic, multilevel, intersectional research to improve care and security in EU school environments. It will systematically explain all possible factors responsible for poor achievement and school dropouts on individual, relational, community and political levels. The research will involve 120 schools, 18 000 students and 2 400 teachers from six EU countries. The project aims to minimise social exclusion in schools.The main objective is to identify determinants affecting student security as a root cause of underachievement, disengagement and school dropout, at 4 different ecological levels or pillars. LET’S CARE will create a theoretical and practical framework to foster Safe Learning, Safe Teaching, Safe Schools and Safe Education in each level, an approach to break the chain of transgenerational transmission of educational and social exclusion. This will generate lower rates of school failure, poor learning outcomes and early school leaving. The main breakthrough is based on considering a relational response to educational exclusion and inequality, resulting in a model for understanding the importance of security to address underachievement in reading, mathematics and sciences, disengagement and early drop out from early child education and care to secondary and second chance schools; and a relational approach to inclusive practices at school, that will be translated into tools, recommendations and guidelines for action at the 4 pillars and at the 4 school stages. The tools can be replicable universally with an impact on challenged populations at risk of educational disadvantage and adapted at EU level.