Tharen Incident

The Tharen Incident occurred when the542nd imperial legion were sent to Tharen to investigate large energy bursts. The bursts were results of Yuzhann vong weapon testing. When the legion landed, they were confronted by yuzhann vong, all of which they killed.The yuzhann vong's bodies were burned, and their war machines were tossed into the planet's vast oceans to cover up the incident.