Enhanced cross-sectoral collaboration holds much promise in mainstreaming a number of crosscutting issues, such as HIV/AIDS, gender and human rights. One notable example of crosssectoral collaboration among organizations of the UN system in Southern Africa is the Regional Inter-agency Coordination and Support Office (RIASCO), a platform established for innovative programming on food security, HIV/AIDS and the humanitarian crisis.

The programme addresses inter-related objectives, such as the fight against the spread of HIV/AIDS, protection of the vulnerable in crisis situations and the special needs of Africa. The joint location of and programming by the relevant UN system organizations has allowed for the close integration of relief, recovery and development.

The complementarities between organizational mandates, expertise and physical inputs are promoting synergy among the UN system partners and improving the effectiveness of their work, both individually and collectively.