65 That is the goal toward which we must work. An ever more effective world solidarity should allow all peoples to become the artisans of their destiny. Up to now relations between nations have too often been governed by force; indeed, that is the hallmark of past history. May the day come when international relationships will be characterized by respect and friendship, when mutual cooperation will be the hallmark of collaborative efforts, and when concerted effort for the betterment of all nations will be regarded as a duty by every nation. The developing nations now emerging are asking that they be allowed to take part in the construction of a better world, a world which would provide better protection for every man's rights and duties. It is certainly a legitimate demand, so everyone must heed and fulfill it.
Source: Populorum Progressio (Vatican.va)