Designed as a pillar of international peace-keeping, the United Nations is facing structural blockages that limit its ability to act. From crises in the Middle East to tensions in other regions, the gap is widening between its ambitions and its real means of intervention. A United Nations reduced to alerting and communicating In the face of recent crises, the United Nations appears increasingly restricted to alerting. In conflicts involving Ukraine, Israel, Iran and the Gaza Strip, the organization is increasing calls for de-escalation and warning of humanitarian risks. However, these positions remain without binding effect on the actors involved. The institution acts essentially as a body of diplomatic resonance, relaying international concerns without having sufficient leverage to directly influence the dynamics of the field. This evolution feeds the idea of diplomacy more focused on speech than on...