History24 Jun 2026·9 min

The War on Drugs Was a Political Weapon

The global prohibition regime was never about public health. It was about controlling populations the establishment could not defeat at the ballot box.

The “War on Drugs” is conventionally presented as a noble, if flawed, effort to protect society from the scourge of narcotics. The historical record tells a different story. The war on drugs was conceived as a political weapon — a tool for targeting political opponents, marginalising minority communities, and consolidating state power under the cloak of moral righteousness.

“The Nixon campaign in 1968, and the Nixon White House after that, had two enemies: the antiwar left and black people. You understand what I'm saying? We knew we couldn't make it illegal to be either against the war or black, but by getting the public to associate the hippies with marijuana and blacks with heroin, and then criminalising both heavily, we could disrupt those communities. We could arrest their leaders, raid their homes, break up their meetings, and vilify them night after night on the evening news. Did we know we were lying about the drugs? Of course we did.”

— John Ehrlichman, former domestic policy adviser to President Richard Nixon, interviewed by Dan Baum for Harper's Magazine, 1994 ( [Baum, 1994, Harper's Magazine])

The Ehrlichman quote is the single most damning indictment of the war on drugs ever recorded. It comes not from a critic or an academic but from one of the architects of the policy itself. And it confirms what many had long suspected: that the drug war was never about drugs. It was about power.

The Ehrlichman Admission in Context

John Ehrlichman served as Nixon's chief domestic policy adviser from 1969 until his resignation in 1973 during the Watergate scandal. His interview with Dan Baum, published in 1994, was remarkable not only for its candour but for its matter-of-factness. Ehrlichman was not confessing wrongdoing; he was describing routine political strategy. The war on drugs, in his telling, was simply a means to an end — a way to achieve politically what could not be achieved constitutionally.

The timing is significant. Nixon launched his drug war in 1971, at the height of the Vietnam War and the civil rights movement. The antiwar left was mobilising millions of young people against his administration. The Black Panther Party and other black liberation organisations were building community programmes and gaining political influence. Nixon needed a mechanism to disrupt and delegitimise these movements without appearing to attack them directly for political reasons.

Cannabis and heroin provided the pretext. By associating the antiwar movement with marijuana — the drug of choice for the counterculture — and black communities with heroin, Nixon could criminalise his political opposition under the guise of protecting public health and safety. The drug war was, from its inception, a strategy of political repression disguised as law enforcement.

The 1961 UN Single Convention on Narcotic Drugs

The global framework for cannabis prohibition predates Nixon and was established by the United Nations. The 1961 Single Convention on Narcotic Drugs consolidated nine previous international drug control treaties into a single framework and created the International Narcotics Control Board to oversee its implementation ( [UN Single Convention on Narcotic Drugs, 1961]). The treaty classified cannabis alongside heroin and cocaine in Schedule IV — the most restrictive category, reserved for substances deemed particularly dangerous with no therapeutic value.

The inclusion of cannabis in Schedule IV was not based on scientific evidence. The World Health Organization's Expert Committee on Drug Dependence had concluded in its review that cannabis had therapeutic potential and that its classification should be reconsidered. But the political momentum behind prohibition was overwhelming, driven by the United States and its allies, who saw the Single Convention as a mechanism for projecting their domestic drug policies onto the international stage.

The United States, under Nixon, used the Single Convention as the legal foundation for its domestic drug war and as a diplomatic tool for pressuring other nations to adopt similar policies. Countries that failed to comply risked losing foreign aid, trade preferences, and diplomatic support. The prohibition regime became self-perpetuating: once enshrined in international law, it became extremely difficult to reform, requiring consensus among signatory nations that was virtually impossible to achieve.

The Misuse of Drugs Act 1971

The United Kingdom enacted its own prohibition framework in the same year as Nixon's drug war declaration. The Misuse of Drugs Act 1971 established the three-tier classification system — Class A, B, and C — that continues to govern drug policy in the UK today ( [Misuse of Drugs Act 1971]). Cannabis was placed in Class B, alongside amphetamines and barbiturates, while heroin and cocaine occupied Class A.

The Act was ostensibly based on the advice of the Advisory Council on the Misuse of Drugs, a body of medical and scientific experts. However, the government ignored ACMD advice on multiple occasions when it conflicted with political objectives. Cannabis was moved from Class B to Class A in 2008 by Prime Minister Gordon Brown, against the advice of the ACMD, and then reclassified back to Class B in 2009 — a political yo-yoing that had nothing to do with science and everything to do with media pressure and electoral calculus.

The Act has been described by critics as a legislative embodiment of the Ehrlichman principle: a tool for social control dressed up as public policy. It has produced a policing regime that disproportionately targets minority communities, a criminal justice system that criminalises hundreds of thousands of people for non-violent offences, and a black market that enriches organised crime networks. It has not reduced drug use, improved public health, or made communities safer.

The Global Legacy

The war on drugs has been an unmitigated global catastrophe. It has fuelled mass incarceration in the United States — where the prison population grew from 300,000 in 1970 to over 2 million by 2020, driven disproportionately by drug arrests. It has destabilised countries across Latin America, where drug cartels have become powerful paramilitary forces that corrupt governments and terrorise communities. It has fuelled the overdose crisis by making drug supply unregulated and unpredictable, leading to contamination with fentanyl and other deadly adulterants.

In the Philippines, the drug war launched by President Rodrigo Duterte in 2016 resulted in an estimated 30,000 extrajudicial killings of suspected drug users and dealers — a brutal but logical extension of the punitive logic that the United States had championed for decades. In Iran, China, Saudi Arabia, and other nations, drug offences are punished by execution. These are not aberrations but consistent outcomes of the prohibitionist paradigm.

The failure of the war on drugs is now so widely acknowledged that even many of its original architects have recanted. Former United Nations officials, former drug enforcement commissioners, and former presidents have called for decriminalisation or legalisation. The global consensus is shifting. But the regime persists because it continues to serve the interests of the powerful — just as Ehrlichman described. It persists because prisons are profitable, because enforcement agencies require targets, and because politicians find it easier to wage war on drugs than to address the underlying social conditions that produce drug-related harm.