At the end of November the ICRC received authorization from the Sudanese Government and the necessary assurances from the SPLM/SPLA opposition movement to implement the plan of action which had been drawn up and flights began on 4 December. During the final month of the year, ICRC aircraft flew regular missions to Wau and Aweil in the zone under government control and to Akon and Yirol in the SPLA-controlled zone, taking off either from Khartoum, Kenya (Lokichokio) or Uganda (Entebbe).