In 1971, President Richard M. Nixon declared drugs "public enemy number one" and waged the War on Drug after tests on returning Vietnam War veterans revealed alarming levels of heroin use. Spanning two volumes of approximately 450 articles in an A-to-Z format, the encyclopedia explores this controversial war through the lens of varied disciplines, and a full spectrum of articles explains topics from Colombian cartels and Mexican kingpins to television reportage; from "just say no" advertising to heroin production; from narco-terrorism to over $500 billion in United States government expenditure. These articles, along with a range of pedagogical elements and availablity in both print and electronic formats combine to comprise an outstanding reference source.