Operation Green Sweep was a series of drug raids conducted by over 200 United States Army soldiers, National Guardsmen, and federal agents in Humboldt County, California.

[4][1] 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[1] from the 7th Infantry Division, the same unit that was used in the invasion of Panama during the previous December.

It also established that law enforcement officials—now cooperating with U.S. military forces—have the ability to search, seize and detain, without warrant or probable cause, in the war on drugs.

The results from the property seized during Operation Green Sweep were: 1400 marijuana plants (worth approximately $2000 each) and 12 tons of growing equipment.