Aerial view of villagers congregating at Houei Kha Moun the day after the fall of Phou Pha Thi (LS-85). Houei Kha Moun, a Striped Hmong village, was a key supply point for the nearby mountain military post with a U.S. Air Force radar station site on top, and Ernest Kuhn (USAID Refugee Operations Officer)'s Sam Neua base 1967-68.