 In the days following the loss of Phou Pha Thi, Sullivan reflected on the disaster at Lima Site 85 and commented that US technicians operating there should have been evacuated on 10 March, when it became amply clear the PAVN were preparing to launch an assault.For the USAF, the loss at Phou Pha Thi was not a result of intelligence failure, because it had been provided with accurate information from the very start.Instead, it was clearly a failure of command and control, as the US personnel and their Hmong allies were not permitted to freely organize their own defense to hold the radar facility.