Bentiu, South Sudan. Photograph: Colm Moloney

The day is written into my mind in indelible ink. The biggest, whitest, fluffiest clouds raced across the bluest sky I had ever seen. I was in Zimbabw(...)

UN secretary-general Ban Ki-moon: “Ultimate responsibility rests with governments who send their people.” Photograph: Jonathan Ernst/Reuters

The head of the United Nations peacekeeping mission in Central African Republic has resigned after a fresh round of allegations of sexual abuse and ex(...)

US president Barack Obama with African Union chairperson Nkosazana Dlamini Zuma (right) arrives to speak about security and economic issues and US-Africa relations at the African Union headquarters in Addis Ababa on Tuesday. Photograph: Saul Loeb/AFP/Getty Images

Barack Obama has made a scathing attack on Africa’s culture of presidents-for-life, urging the continent’s leaders to follow the example of George W(...)

 An explosion during a  Nato military exercise in Drawsko Pomorskie military range in  Poland. A global security report said on Wednesday that the cost of violence around the world reached a record $14.3 trillion last year. Photograph: Marcin Bielecki/EPA.

The cost of violence around the world reached a record $14.3 trillion (€12.7 trillion) in 2014, equivalent to the combined economies of Brazil, Can(...)

 UN Secretary-General Ban Ki-moon has announced a review of how the body dealt with claims of child sexual abuse by soldiers from France, Chad and Equatorial Guinea in the Central African Republic. File photograph: Mandel Ngan/AFP/Getty Images

United Nations Secretary-General Ban Ki-moon announced on Wednesday that he would set up an external independent review of how the world body handled (...)

Voters from an Internally Displaced People camp in Maiduguri queue to get registered for Nigeria’s presidential elections. Conflicts and violence in places like Syria and Ukraine have displaced a record 38 million people inside their own countries, equivalent to the total populations of New York, London and Beijing, according to the Norwegian Refugee Council. Photograph: Stringer/AFP Photo/Getty Images

The number of people displaced within their own countries was the worst in a generation last year, but there is little sign of governments taking acti(...)

French president Francois Hollande: said would “make an example” of up to 16 French soldiers if allegations contained in a United Nations report leaked to a newspaper prove true

President François Hollande has said he would “show no mercy” and would “make an example” of up to 16 French soldiers accused of sexually abusing chi(...)

US president Barack Obama delivers a statpment in  White House in  on Thursday in which he apologised for a counterterrorism operation in January that accidentally killed two aid workers held hostage by al Qaeda. Photograph: Jonathan Ernst/Reuters

US president Barack Obama expressed his “deepest apologies” on behalf of his government over the killing of two aid workers, an American and an Itali(...)

It was clear to all last October what the disbanding of Italy’s “Mare Nostrum” search and rescue mission meant. Perhaps EU leaders were able to delude(...)

 Minister of State for Overseas Development Assistance Seán Sherlock, who said that the Rapid  Response Corps played a key role in the State’s humanitarian response strategy. Irish Aid has called for skilled volunteers to consider joining the corps. File photograph: Frank Miller/The Irish Times

Irish Aid is calling for skilled and experienced volunteers to consider joining the Irish Rapid Response Corps as part of the Government’s programme f(...)