For 37 years Colombia has been spraying chemicals to combat illicit crops, particularly coca. These massive eradication programmes became part of the US-backed 'War on Drugs'. The fumigations are controversial for their proven inefficacy to reduce supply and demand for the use of herbicides such as glyphosate.
The "war on drugs" has not been won, Colombian President Juan Manuel Santos told the United Nations, exhorting the world body to add teeth to the Special Session on Drugs in 2016, proposed by Mexico and accepted by the world body. The Organization of American States was commissioned to study new approaches to combating illegal drugs. The studies were delivered in May proposing that the United Nations give them serious consideration in time for the special session on drugs.
Colombia, Mexico and Guatemala delivered a landmark declaration to the United Nations Secretary General calling on the organization to lead a debate on alternative approaches to the current war on drugs, though it is likely to fall on deaf ears. The statement, issued to Secretary General Ban Ki-moon on October 1, contains 11 points outlining the three countries’ views on the current state of organized crime and counternarcotics policy in the Americas (see declaration in English here, and in Spanish here).