Garrido, J. 2024. The Air Iron Curtain of the 21st Century: the Ukraine of the Air | A Cortina de Ferro Aérea do Século XXI: as Ucrânias do Ar. Political Observer | Revista Portuguesa de Ciência Política (Portuguese Journal of Political Science). 20 (Jan. 2024), 51–65. DOI:https://doi.org/10.59071/2795-4765.RPCP2023.20/pp-51-65.