South Sudan army soldiers walk to board a military helicopter at Juba international airport
South Sudan army soldiers walk to board a military helicopter at Juba international airport, before heading to Bor, 180km (108 miles) northwest from the capital December 25, 2013. South Sudanese troops have retaken the flashpoint town of Bor in Jonglei state, a week after the town fell to rebels loyal to rebel leader Riek Machar. REUTERS/James Akena (SOUTH SUDAN - Tags: POLITICS CIVIL UNREST MILITARY TPX IMAGES OF THE DAY)
South Sudan army soldiers walk to board a military helicopter at Juba international airport
South Sudan army soldiers walk to board a military helicopter at Juba international airport, before heading to Bor, 180km (108 miles) northwest from the capital December 25, 2013. South Sudanese troops have retaken the flashpoint town of Bor in Jonglei state, a week after the town fell to rebels loyal to rebel leader Riek Machar. REUTERS/James Akena (SOUTH SUDAN - Tags: POLITICS CIVIL UNREST MILITARY)
A South Sudan army soldier is pictured with their army flag mounted on a truck in Bor
A South Sudan army soldier is pictured with their army flag mounted on a truck in Bor, 180 km (108 miles) northwest from capital Juba December 25, 2013. South Sudanese troops have retaken the flashpoint town of Bor in Jonglei state, a week after the town fell to rebels loyal to rebel leader Riek Machar. REUTERS/James Akena (SOUTH SUDAN - Tags: POLITICS CIVIL UNREST MILITARY)
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