BEIJING, Dec.8 -- Recently, China's second peacekeeping helicopter unit to Abyei successfully completed their tasks assigned, and all members returned home smoothly. The contingent is composed of personnel selected from an army aviation brigade under the PLA 82nd Group Army. Over the past year, the peacekeepers have completed the armed air patrol, dangerous goods transportation, medical evacuation, force projection, passenger and cargo transportation, and other flight missions entrusted by the UAE security forces with high standards. They have flight a total mileage of 184,680 kilometers, and the contingent has been honored as an elite force by the UAE security forces for its excellent, safe and reassuring operations.