Adré is supposed to be a town of transition. Perched on the border between Chad and Sudan, the city, which was initially used for cross-border trade, has now become the passing point for people escaping civil war and famine in what some diplomats have called the “worst humanitarian crisis in the world.” More than 600,000 refugees have reportedly fled from Sudan to Chad in the last 16 months, meaning the neighboring country has seen more Sudanese refugees in one year than the previous 20 years combined, many of which have settled in makeshift borders, per remarks made by Linda Thomas-Greenfield, the U.S.