S/RES/1997 is one of rarest resolutions that the United Nations Security Council ever issues. The document order the withdrawal of the troops of the UNMIS from the country and it to be deployed to the new missions in the region, the UNMISS and UNISFA. This is one of the rare moments in the workings of the Council in which the mandate of a mission was not extend, but rather let to expire. Nonetheless, the UN presence in the region did not change as a result of this change, since from the writing of the resolution one can assume that all the assets will just be redeployed.
