CNN  —  More than half a million Afghans have been expelled from Iran in the 16 days since the conflict with Israel ended, according to the United Nations, in what may be one of the largest forced movements of population this decade. For months, Tehran has declared its intention to remove the millions of undocumented Afghans who carry out lower-paid labor across Iran, often in tough conditions. The International Organisation for Migration (IOM) has said 508,426 Afghans have left Iran via the