Both global and historical, the different migrations of the new millennium are massive, diverse and particularly linked to wars and invasions in the Middle East and Africa. However, they are also economic (and work-related), cultural and social ones. Our America, Asia and Oceania are not the exception to the rule, but rather the confirmation of the phenomenon of migrations worldwide including their impacts in North America and Europe. But how to understand a phenomenon that is generating great transformations in our time? Such phenomenon cannot be ignored from the Social Sciences and Humanities. In fact, in the present issue of NuestrAmerica journal, readers will have the possibility to investigate at the core of diverse interpretations that demand a holistic and interdisciplinary look as well as the challenge of observing several cases and experiences that allow to generate theoretical approaches and discussions on the central subject: migration, refugees and forced displacement .