Jean-Marie Guéhenno is a former French diplomat who served as the United Nations' Under-Secretary-General for Peacekeeping Operations from 2000 to August 2008.

The Department of Peace Operations (DPO) is a department of the United Nations charged with the planning, preparation, management and direction of UN peacekeeping operations. Previously known as the Department of Peacekeeping Operations (DPKO), it was created in March 1992, as part of a restructuring of the UN's peace and security apparatus. The DPO retains the core functions and responsibilities of its predecessor, with a greater emphasis on cohesion, integrating different resources and knowledge, and promoting human rights.