Intense excerpt from the "Pech River Boys" documentary.
Marines Battle Taliban in Opium Raid
PART 2 of 3 -- Helmand Province, Afghanistan - Marines from 2/9 Echo conduct a search and seizure raid on a known Taliban opium factory in early 2013. As the helicopters come back in to complete the extraction, Taliban fighters open fire. The vast majority of Opium profits are used to fund Taliban operations, and "Fighting Season" normally begins about a week after the harvest is complete and the Taliban can afford more equipment.