The primary purpose of this publication is to show how the principles and techniques of strategic and operational planning can be applied to the supply reduction side of our national effort to curb the trafficking of illicit drugs. An earlier version was published in 1991 which introduced campaign planning methodology as a means to help bridge the gap existing between the policy and strategy documents of higher echelons and the tactical plans developed at the field level. These campaign planning principles, formats, and examples of operational level techniques have been retained and updated for use as models for current interagency actions. This expanded edition provides a more detailed overview of the drug problem in the opening chapter and adds a new chapter devoted to strategy--what are the key ingredients and how is an effective strategy formulated? The United States is at a critical juncture in its campaign to eliminate the rampant drug problem. Past gains are in danger of being lost. Recent trends suggest a resurgence in illicit drug use and that younger and younger Americans are falling prey to the drug pusher.