A woman carries a sack of food aid after a food-drop in a field on February 23, 2015 at a village in Nyal, Panyijar county, near the northern border with Sudan. Isolated by the Sudd, the world's largest marsh area, Nyal's population is relatively protected from the war that ravaged South Sudan but starving and exposed to disease. Almost all Panyijar County, that counts about 60,000 people, depends on food aid parachuted by the World Food Programme (WFP) says local Prefet Tap Puot John, a member of the "opposition" whose troops fighting the government army since December 2013 control the area. AFP PHOTO/TONY KARUMBA        (Photo credit should read TONY KARUMBA/AFP/Getty Images)