The UN Security Council approved a resolution Monday to send 4200 peacekeepers to Abyei Sudan as part of a recent agreement between Sudan and Southern Sudan The resolution will establish for six months the United Nations Interim Security Force for Abyei LRB UNISFA RRB comprising a maximum of 4200 military personnel 50 police personnel and appropriate civilian support the resolution states It passed the council unanimously 150 In a statement released by the State Department Secretary Hiliary Clinton commended the swift passage of the resolutionAbyei has been a source of regional tension for many years the statement said We urge the parties to reach an immediate ceasefire and to provide aid workers with the unfettered access required to deliver humanitarian assistance to innocent civilians affected by the conflictA week ago the Sudanese government and the Sudan Peoples Liberation Movement signed an agreement to allow peacekeepers in Abyei aimed at ending strife that has ravaged much of the country The two sides agreed in principle on the need for a third party to monitor the illdefined border between north and south before the scheduled July 9 independence for the south The UN peacekeepers will monitor and verify the redeployment of any Sudan Armed Forces Sudan Peoples Liberation Army or its successor from the Abyei area among other tasks the Security Council resolution states 