 Complete the following phrase:  On July 29, 1990 a joint task force converged at a base camp in Humboldt County for what is known as Operation Green Sweep. The operation was led by the Bureau of Land Management and consisted of approximately 60 drug law enforcement agents, 110 California National Guardsmen and 60 regular U.S. Army soldiers from the 7th Infantry Division, the same unit that was used in the 