Members of the XV Caravan of Central American Mothers looking for missing migrant children in Talisman, Chiapas state, on the Mexican border with Guatemala. Photograph: Getty Images

Guatemala is marketed across the globe as the “Heart of the Mayan World”. Photographs of spectacular jungle pyramids and smiling indigenous women, car(...)

Mallavi Central College students Kaleirasi, L Sharaniya and Nishanthini during a Music Project violin lesson. Photograph: Joseph O’Connor

Indhumadhi sits on a small wooden stool proudly displaying a photograph of her son pictured in his school orchestra. Beside her, at her home in Mullai(...)

Former vice-president of South Sudan Riek Machar at his home in Juba in November. ‘We are going through a very unpredictable period, the most unpredictable since independence,’ he says. Photograph: Brenda Fitzsimons

After days of fighting between rival factions in South Sudan’s army, the world’s youngest state finds itself at its most dangerous juncture since decl(...)