Hundreds of thousands of Rohingya refugees were seriously traumatized when Myanmar troops launched a brutal "clearance operation" in August 2017 that forced them to flee to neighboring Bangladesh. Treating those suffering from mental illness because of the trauma they endured has become a major challenge in the Bangladesh refugee camps, especially for the child survivors, estimated to be 56 percent of those displaced. Steve Sandford has this report. VOA Khmer's Sreng Leakhena narrates.