Pacem in Terris §124

¹²⁴ Hence the wisdom of Pope Pius XII's teaching: "A new order founded on moral principles is the surest bulwark against the violation of the freedom, integrity and security of other nations, no matter what may be their territorial extension or their capacity for defense. For although it is almost inevitable that the larger States, in view of their greater power and vaster resources, will themselves decide on the norms governing their economic associations with small States, nevertheless these smaller States cannot be denied their right, in keeping with the common good, to political freedom, and to the adoption of a position of neutrality in the conflicts between nations. No State can be denied this right, for it is a postulate of the natural law itself, as also of international law. These smaller States have also the right of assuring their own economic development. It is only with the effective guaranteeing of these rights that smaller nations can fittingly promote the common good of all mankind, as well as the material welfare and the cultural and spiritual progress of their own people". (62)