Poverty, despair, hunger for revenge drive young Syrians to extremist groups: research
Males between 12 and 24 most at risk of joining jihadist organisations like Islamic State and Al-Qaeda's Syrian affiliate Nusra Front
Syria withholds aid to thousands, risks new siege in Aleppo -UN
"It is a disgrace to see that while the population of Aleppo is bleeding, their options to flee have never been more difficult" - U.N. adviser Jan Egeland
EU proposes scheme to share out asylum seekers
Each of the 28 states would be assigned a percentage quota of all asylum seekers in the bloc that it would be expected to handle
Iraq's all-female combat unit seeks revenge on Islamic State
Yazidi and Kurdish women take up arms to get revenge for women raped and killed by jihadist militants
Cameron backs down over Syrian child refugees, Britain to take more
Government wants to avoid encouraging more Syrians - including children - to attempt the hazardous journey to the West
Q+A with ex-U.N. aid chief John Holmes: "You are trying to put sticking plasters on situations"
Former U.N. aid chief John Holmes urges the humanitarian system to "go more local" and pursue innovation
Q+A with ex-U.N. aid chief Valerie Amos: "Too many countries get away with using sovereignty to hinder humanitarian response"
Former U.N. humanitarian chief Valerie Amos says aid has become politicised and fragmented
Q+A with U.N. aid chief Stephen O'Brien: "We have ever-escalating demands to meet humanitarian needs"
"There is a clear set of outcomes we are looking for out of the World Humanitarian Summit," says UN aid chief
Q+A with ex-U.N. aid chief Jan Egeland: "I find the humanitarian principles attacked, politicised, militarised"
"We keep people alive but we don't defend them," says former U.N. aid chief Jan Egeland
Q+A-Why reform the humanitarian system? Past, present U.N. aid chiefs discuss
U.N. officials, relief workers and governments meet May 23-24 to improve aid response in conflicts and disasters