On December 22, the UN Security Council unanimously adopted resolution 2559, deciding that the UN and the African Union mission in Darfur, Sudan should withdraw after the termination of its authorization on December 31. < / P > < p > the resolution requires the Secretary General of the United Nations to reduce the personnel of the mission from January 1, 2021, and all personnel except those required for assets liquidation shall be withdrawn before June 30, 2021. < / P > < p > the resolution urges the government of Sudan to implement its civilian protection plan quickly and fully to protect civilians in Darfur, and to cooperate with the United Nations and the African Union to ensure the orderly and safe withdrawal of the mission. < / P > < p > the resolution also calls for the cooperation between UNAMA and the newly established United Nations Integrated transitional assistance mission in Sudan on the handover of relevant work through the coordination mechanism of the two missions. < / P > < p > Darfur is located in western Sudan. Since 2003, some armed groups in the region have clashed with government forces. In July 2007, the UN Security Council authorized the deployment of UNAMA in Darfur to support the implementation of the peace agreement and protect the safety of civilians, UN personnel and international humanitarian workers. < p > < p > in June this year, the Security Council decided to establish the United Nations Integrated Assistance Mission in the Sudan as a follow-up arrangement for the peacekeeping force. Its task is to provide assistance in the political transition period of Sudan, including technical support for drafting the constitution, conducting the census and elections; help promote the peace process in Sudan; help build peace and the rule of law, protect civilians; and mobilize all parties to provide assistance and coordination for Sudan Humanitarian aid, etc.