Today’s international orderInternational order appears to be increasingly contested. This phenomenon may be driven by the new distribution of power resulting from the global power shift, in which emerging actors are making new demands on existing institutions and normsNorm. But this phenomenon is not entirely new, as Edward Hallett Carr, in his famous work The Twenty Years Crisis: an Introduction to the Study of International Relations, already postulated that disaffected powers, using ideological power and other resources (e.g., military), attempted to change the content of the rules and the distribution of goods in the international system (Carr 1946). Interestingly, what Carr’s work already pointed out is that a changing distribution of power goes hand in hand with actors contesting the normative structure of the international system. But in the current international orderInternational order, a hitherto unprecedented fact is that contestation arises in the context of highly institutionalised international politics. This is the case of the international orderInternational order that was born in San Francisco in 1945, with the United Nations (UNUnited Nations (UN)) at its core.