Since the 1979 Soviet invasion and the subsequent waves of violence that have rocked Afghanistan, millions of Afghans have fled the country, seeking safety elsewhere. The Islamic Republic of Iran boasts 5,894 km of borders. Most of it, including the 921 km that are shared with Afghanistan, are porous and located in remote areas. According to the Government of Iran, some 2000-2500 Afghans arrive in Iran every day. UNHCR Iran does not have access to border points and thus is unable to independently monitor arrivals or returns of Afghans. Afghans who currently reside in Afghanistan have different statuses: some are refugees (Amayesh card holders), other are Afghans who posses a national passport, while other are undocumented. These populations move across borders in various ways.