"The peacetime mission of the National Guard (the Guard) is to protect life and property and to maintain peace, order, and public safety. As part of its peacetime mission, the Guard has been involved in support of counternarcotics activities since 1977. Over the past decade, the Guard has increased its emphasis on counternarcotics activities as concerns about illicit drug use in the United States have grown. The Guard began to quantify its support to counternarcotics efforts in 1983. In 1983, four states were involved in counternarcotics missions. By 1988, 32 states were involved in 456 marijuana eradication missions. These missions were accomplished by the Guard incidental to training and without Federal funding."
Department of Defense, Office of the Inspector General, Report No. 91-107
Defense Technical Information Center (DTIC): http://www.dtic.mil/dtic/