The Department of Peacekeeping Operations (DPKO) provides political and executive direction to UN peacekeeping operations and maintains contact with the Security Council, troop and financial contributors, and parties to the conflict in the implementation of Security Council mandates.
DPKO was established in 1992 as part of a restructuring of the Secretariat, outlined in the report of the Secretary-General A/46/882. The General Assembly welcomed its creation in resolution 47/71. This was part of a larger reform effort that came out of the first Security Council summit at the level of heads of state or government (S/PV.3046, outcome S/23500), and the Secretary-General's "Agenda for Peace" (A/47/277-S/24111). The 1992 Yearbook of the United Nations offers a narrative summary of these developments in Part I, Chapter 1 (pdf).
There have been several changes over time to the department, most recently in accordance with General Assembly resolution 61/256 of 15 March 2007, which also established the Department of Field Support.
The current structure of DPKO is found in ST/SGB/2010/1.
The Department of Field Support (DFS) provides support to peacekeeping and other field missions in the areas of finance; logistics; information, communication and technology (ICT); human resources and general administration.
DFS was established by General Assembly resolution 61/256 of 15 March 2007.
The current structure of DFS is found in ST/SGB/2010/2.