Cattle camp, Unity state, South Sudan.
Protection of Civilians site, Bentiu, Unity state, South Sudan. Home to more than 130,000 people since the outbreak of war in December 2013.
Stagnant water, Bentiu PoC. When the rains come the PoC becomes a putrid quagmire. Malaria abounds.
Ethiopian peacekeepers rescue calves trapped in gluey swamp mud in the bush around Abyei Town. Abyei is a disputed fist of land crushed between Sudan and South Sudan. Sudan refused to give up the territory because it has one of the country's only remaining oilfields. The population of Abyei was mainly Ngok Dinka who identified with the departing south when Sudan separated. Most of these Dinka have since been pushed into northern South Sudan by invading Arab tribes armed by the north.
A new arrival to Bentiu PoC camp. In spring 2015 South Sudan's government launched a massive and catastrophic military offensive across Unity state, aimed at crushing rebel support. The offensive was characterised by unspeakable crimes against civilians.
Fetid standing water inside Malakal PoC camp, Upper Nile state. The vast majority of civilians sheltering in South Sudan's PoCs are women and children. Living conditions are incompatible with human dignity.
Up to 8,000 civilians await a food distribution in the remote bush in South Sudan's Unity state.
Families abandon Melut PoC after fighting between government and rebel forces threatens the camp. UN peacekeepers have been unable to protect civilians seeking shelter across most of South Sudan's spontaneous displacements sites.
A child participates in a 'back to learning' campaign in Yambio, Western Equatoria state. More than half of South Sudan's children are out of school because of conflict - this is a higher percentage than anywhere else in the world.
Nuer youths, Waat, Jonglei state, South Sudan.
Singing the national anthem, Unity state, South Sudan.
Abandoned oilfields in Unity state. Most of South Sudan's oilfields are deserted and non-op since 2013 because of fighting between the government and opposition forces.
Because many of South Sudan's oilfields were abandoned in a hurry, they were not shut down correctly and continue to leak oil into the environment, contaminating water supplies for surrounding communities.
Graffiti on the walls of an abandoned school in northern Unity state, South Sudan.
Civilians queue in the scorching sun for a massive aid distribution in Nyal, Unity state.
Men are separated from women and children during a food aid distribution in Unity state, South Sudan. Men are often separated during such operations because they are usually fitter, greedier and quick to quarrel.
A premature baby at the MSF-supported government hospital in Aweil, South Sudan. The country has one of the highest infant and maternal mortality rates in the world.
Mother and child, Aweil maternity hospital, South Sudan.
Government loyalists during a presidential rally, Juba, South Sudan, 2015.
False hope, presidential rally, Juba, South Sudan, 2015 (AFP, Getty Images).
SPLA soldier, Juba, South Sudan.
South Sudan's president Salva Kiir Mayardit and his entourage, Juba, 2015.