![Photo Credit: NPR](http://apps.npr.org/syria/assets/img/desktop-c_pulitzercenter_npr048.jpg)
Since the civil war started in 2011, more than 11 million Syrians have been driven from their homes – that’s half of the country’s population. It’s one of the largest refugee catastrophes since World War II. NPR takes a look at four families struggling to stay together… a powerful read.