At the end of WWII, the international community sought identify common legal instruments to prevent a repetition of what happened in the last war. At the same time, these legal instruments had to take into account the changes in the international order occurring during the international meetings for their elaboration and should relate to a still-developing new global order. The elaboration of such instruments didn't begin with the end of the IIWW, of course, but, with the end of the war, their implementation became pressing. In such a context, the important phases of the elaboration of the international charts between 1945 and 1955 could be an interesting laboratory for understanding the compromises, the new elements, the lines of tension, and the impossible meeting of identities that characterised the activities of the people who worked on the negotiations for these charts. The most important charts are interesting not only for the results but also for the steps that they took to see the light at the end of the process. How the different identities involved could (or not) find a compromise for a better social and international inclusion? How do the identities of the individual actors find a place in such international meetings? What were the common meanings, the common ideological basis (or not) for such negotiations? What were the different steps made by such actors to define a common sense of tolerance, human rights, peace, freedom, and so on? And today, in a completely different context, could these values still be considered evergreen and valid? In this paper, three important conventions will be considered from the Vatican documentation: the 1949 Geneva Conventions, the 1951 Refugee Convention, and the 1954 Hague Convention for the Protection of Cultural Property.