Soledad Álvarez Velasco is a postdoctoral fellow researcher in the Department of Comparative Cultural Studies at the University of Houston and the general coordinator of the regional research project (Im)Mobility in the Americas and COVID-19. Her research investigates the nexus between undocumented transit migration, border regime and the capitalist state, particularly in the case of the Andean Region, Central America, Mexico extended migratory corridor used by a global diaspora of African, Middle Eastern, South American and Caribbean undocumented migrants to reach the U.S. Her work also analyzes how the externalization of U.S. border enforcement policies impacts the South American region, the movement of unaccompanied migrant children across that extended corridor, the role of transnational smuggling networks and of social and digital infrastructures of mobility enabling migrants’mobilities. She is the author of Frontera sur chiapaneca: El muro humano de la violencia: Análisis de la normalización de la violencia hacia los migrantes indocumentados en tránsito (2016), and co-author of Entre la violencia y la invisibilidad: niños, niñas y adolescentes ecuatorianos no acompañados en tránsito a Estados Unidos (2012).