Millions of people around the world have been forced from their home countries due to war, genocide, or persecution.
They come from conflict-ridden countries like Syria, Somalia, and Sudan, and they wait for years in refugee camps before they can secure a spot in safe countries.
The United States takes in just a tiny fraction of the world's refugees - but it maintains perhaps the strictest, most rigorous vetting process.
In honor of World Refugee Day, here's a look at where the world's refugees come from and what they endure to make it to safety in the United States: