In September 1961, in response to an appeal by the United Nations (UN) for military support, an initial force of five J 29Bs were stationed in the Republic of Congo as a contribution to a UN peacekeeping mission (ONUC) in the region, organized as the F 22 Wing of the Swedish Air Force. It was subsequently reinforced by four more J 29Bs and two S 29C photo reconnaissance Tunnans in 1962. The J 29 was the only combat aircraft at the disposal of the UN, the J 29Bs dispatched receiving the UN identifying legend upon their fuselages.