In June 2021 NATO is embarking on a process to revise its strategic concept, starting with its first post-Trump summit which is scheduled to take place in Brussels on June 14th. To engage in the upcoming policy debates in Germany, Europe and the Alliance writ large, it is important to first obtain an overview and understanding of where discussions about the future of the Alliance in different member states (and non-member states) come from and where different experts see the Alliance heading towards. The study �Three Visions for NATO - Mapping National Debates on the Future of the Alliance� shall provide experts but also policy makers and interested citizens with the orientation and expertise necessary, to effectively engage in the democratic processes shaping the future of the Alliance.