From May to December 2012, UN Volunteers in Juba deployed to the United Nations High Commissioner for Refugees (UNHCR) through the United Nations Mission in South Sudan (UNMISS) were active in an Emergency Return and Reintegration Operation of South Sudanese Returnees.   The two part operation successfully achieved the emergency return of 12,000 returnees and the emergency reintegration of 1,600 returnees to South Sudan.