This operation was designed to interdict Communist routes of infiltration along the Ho Chi Minh Trail, through Laos into South Vietnam. The aerial campaign involved a series of intensive air operations by U.S. Air Force, Navy, and Marine Corps aircraft and lasted until April 1972. During the course of the operation, nearly 3 million tons of bombs fell on Laos. While Communist infiltration was slowed by this campaign, it was not seriously disrupted. Commando Hunt was ultimately considered a failure.