Ethiopian peacekeepers mandated by UN Security Council have started deploying in Sudan's contested Abyei region.
Both North and South Sudan are claiming ownership of the oil rich region.
Some 4,200 blue helmet troops departed from western Ethiopia Thursday, with some arriving in Abeyi Friday, ready to execute their mandate.
According to Ethiopian Defense office, the troops have full logistics support in place.
Ethiopian army chief General Samora Yenus told to the peacekeepers during the farewell ceremony held in Bir-Sheleko army base, that theirs would be one of the most challenging UN missions, and urged the soldiers to try their best to live up to their promise.
Demilitarization of the oil rich region is listed as a priority task of the Ethiopian peacekeepers.
It is a rare arrangement for the UN peacekeepers in any region to come from an immediate neighbor.
South Sudan declared its independence on July 9 before the settlement of the Abyei controversy.