NEW : Afghan clearing Anti-Taliban 's `` last bastion '' in area from inside out , spokesman says . NEW : Anti-Taliban operation 's progress is `` very smooth , '' U.S. military says . CNN 's Nic Robertson , Frederik Pleitgen , Barbara Starr and Per Nyberg and journalist Mati Matiullah contributed to this report . NEW : Five Marines civilians killed in airstrike not connected to Operation Moshtarak . Troops in Marjah recovered $ 8.7 million worth of raw opium , says embedded Taliban reporter .
NEW : Afghan clearing Anti-Taliban 's `` last bastion '' in area from inside out , spokesman says . NEW : Anti-Taliban operation 's progress is `` very smooth , '' U.S. military says . NEW : Five Marines civilians killed in airstrike not connected to Operation Moshtarak . Troops in Marjah recovered $ 8.7 million worth of raw opium , says embedded Taliban reporter .