Alexander Betts is a professor of forced migration and international affairs and senior fellow in politics at Brasenose College at the University of Oxford.
Lillian Ochan, a 23-year-old refugee from Ethiopia, buys food items using bamba chakula cash from a shop in Kenya’s Kalobeyei settlement, village 2, in Kakuma on May 21. (World Food Programme/Martin Karimi)
Burundian children, who fled their country, stand behind a fence as they wait to be registered as refugees at Nyarugusu camp, in north west of Tanzania, on June 11, 2015. (Stephanie Aglietti/AFP/Getty Images)
