South Sudanese gather following the Christmas service at the Juba Catholic Cathedral, in the southern Sudan's capital city on December 25, 2010, in what may be their last Christmas in a unified Sudan. A referendum for southern independence will be held on January 9 and probably lead to the partition of this nation the largest on the African continent. AFP PHOTO/TREVOR SNAPP (Photo credit should read Trevor Snapp/AFP/Getty Images)