katero
Jun 29, 2026

Next U.N. Secretary-General Must Be More Than Mediator-in-Chief

Guterres speaks at a podium in the massive General Assembly hall, on a large dais at the base of a gold backdrop stretching to the high ceiling, his image also projected on screens behind him, as member state representatives are seated at long rows of desks arrayed in front of the dais.

As U.N. Secretary-General Candidates Make Pitch to be Mediator-in-Chief, Will Peacebuilding End Up On the Cutting Room Floor?

For 12 grueling hours in late April, and six further hours last week, the six candidates competing to become the next United Nations secretary-general were grilled by U.N. member States and civil society in open interactive dialogues. As each candidate sat for three hours answering questions during these marathon sessions, it was clear that a collective groupthink has engulfed the U.N.: that the institution is missing in action when it comes to peace and security, and the answer to reversing this trajectory is for the next secretary-general to first and foremost be a mediator-in-chief. But as these candidates jostled to present platforms promising a new mediation crisis-response posture for the U.N., the word “peacebuilding” was barely uttered once

Nostalgia for the type of leadership seen by previous secretary-generals such as U Thant in the 1960s, which has been documented in a recent book that seems to have been read by every U.N. ambassador in New York, has led to many yearning for a return to a frontline leader who can effectively mediate between warring parties to avoid all-out conflict. While candidates all sought to demonstrate their commitment to this idea that bold action and principled peacemaking were necessary ideals of the next secretary-general, peacebuilding — or efforts to address the drivers of conflict — was notably absent from discussions. This is despite the latest Global Peace Index from the Institute of Economics and Peace recording violent conflict levels at their highest in more than two decades.

As the U.N. convenes this week to host its first-ever Peacebuilding Week, a timely question must be raised: does the emerging narrative in the secretary-general search risk pushing the U.N. towards a posture that prioritizes crisis response, elite bargains, and shuttle diplomacy, at the expense of peacebuilding efforts that require longer-term investment to address the structural, political, economic, and social — including gender-related — drivers of violent conflict?

At a moment when trust in multilateral institutions has been eroded by continued failures to prevent or respond effectively to crises in Gaza, Sudan, Ukraine, Myanmar, Iran, and Lebanon, a new leader undoubtedly must strengthen the U.N.’s mediation and crisis-diplomacy capacity. But to deliver on the world’s “most impossible job,” as the U.N.’s first secretary-general, Trygve Lie of Norway, described it to his successor, Sweden’s Dag Hammarskjöld, this investment in crisis response will only reap dividends if peacebuilding remains a strong part of what the U.N. can offer

The Secretary-General Selection Process

The U.N. secretary-general is charged with upholding the values and moral authority of the United Nations and using the role as the world’s chief diplomat to attempt to prevent international disputes from arising, escalating, or spreading. Elected by the U.N. General Assembly at the recommendation of the 15 members of the U.N. Security Council, potential candidates know that the real power ultimately resides in the five permanent members of the Security Council — China, France, Russia, the United States, and the United Kingdom — each of whom holds veto power over the appointment.

Last week’s dialogues allowed the six public candidates in the race to replace current U.N. Secretary-General Antonio Guterres — Rafael Grossi, Michele Bachelet, Macky Sall, Rebeca Grynspan, Maria Fernanda Espinosa, and Carolyn Rodrigues Birkett — to present their vision to the U.N. General Assembly.

Starting in late July, the Security Council will embark on a closed voting process known as “straw polls” to assess the viability of each candidate. These votes usually conclude in September or October, once the Council coalesces around one candidate, who then will be nominated to the U.N. General Assembly to serve as the 10th U.N. secretary-general, taking office on Jan. 1, 2027.

A Tough Job Only Getting Tougher 

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