Welcome to the United Nations

Operational support

  • UNSOS at work
    UN Photo

The effectiveness of peace operations always depends on the operational support it receives.

The Department of Operational Support (DOS) helps peace operations succeed by providing support solutions that are rapid, effective, efficient and responsible. It works together with UN and non-UN partners to plan, mobilize and sustain 35 peacekeeping, special political and other field missions in the world’s most complex environments. 

Today, DOS helps administer a combined annual budget of over $7 billion, 131,000 authorized uniformed personnel and 24,000 authorized civilian staff in over 270 duty stations across more than 30 countries. The services it provides range from budget, finance, human resources and technology to the management of supply chains, facilities and assets. It also supports UN efforts in response to all forms of misconduct by mission personnel.