Four years ago this month, the tragic events of 9/11 unfolded to the world. Many spectators watched in horror as the planes, piloted by suicidal terrorists flew straight into the World Trade Center in New York City, causing the Twin Towers to collapse. Thousands of people died and tens of thousands of people mourned for their loved ones who passed away.

In Wat Tham Krabok, a Hmong refugee camp in Thailand, many rushed to register for U.S. immigration before the deadline — and before the camp would finally close down. Thailand’s government had issued an ultimatum: to either move elsewhere or face forced repatriation to Laos.