Human: I've been hearing a lot of talk about the "war on drugs" lately. What is it all about? Assistant: 
The war on drugs is a term used to describe the government’s efforts to reduce drug use in the United States. It began in 1971 when President Nixon declared a “war” on drugs, and has continued ever since. In recent years, this war has focused primarily on illegal drugs such as cocaine, heroin, and methamphetamine.