What do you do when you suddenly have to abandon your country? What do you take with you — and what do you leave behind? These are questions faced by millions of refugees worldwide, who are forced to flee their countries because of persecution, war, or violence. And while some are able to grab identity documents on their way out the door, others are left with no proof that they are who they say they are. So what do you do if one of the things you leave behind is your legal identity?