The goal of the project 'Success Through Synergy: RBI-T-WINNING and ESIF United in Strengthening the Excellence of the Division of Theoretical Physics of the Ruđer Bošković Institute' is primarily to strengthen the research potential of the Division of Theoretical Physics of the IRB through the improvement of equipment and infrastructure, as well as enabling the further implementation of research stimulated by the measures of the RBI-T-WINNING project, which aims to round off the efforts of positioning the Department of Theoretical Physics as a prominent center in this scientific field.