Hmong Auto Defense de Choc (ADC) soldiers waiting for an Air America helicopter to land at the Striped Hmong village of Houei Kha Moun to transport a sling of drums to nearby Phou Pha Thi (LS 85), a mountain military post with a U.S. Air Force radar station site on top. Houei Kha Moun, a key supply point for the mountain post, was Ernest Kuhn (USAID Refugee Operations Officer)'s Sam Neua base 1967-68. Note a national flag flying in the middle.