On 1 December 2006 Felipe Calderón took office as Mexico’s new president. Ten days later he metaphorically declared war on the drugs cartels and put the army at the centre of a major security clampdown. Calderón’s decision to militarise the fight on drugs was one of the most consequential, and some would say, the most catastrophic taken by any recent Mexican government. Put bluntly, he claimed that in the six years of his term in office he would improve citizen security and reduce the murder rate, and he failed. Each of the two subsequent presidents, Enrique Peña Nieto in 2012 and Andrés Manuel López Obrador (AMLO) in 2018, made the same promise and achieved the same terrible result: failure.
Now, on 1 October 2024, Claudia Sheinbaum has become the fourth consecutive president to make the same promise. Solely based on crude numerical probability the risk is that she too, like her predecessors, will fail. Certainly, security will be one of the top yardsticks for measuring her government’s performance since it cuts across so many other issues such as the economy, migration, public health, human rights, and the rule of law. A sense of the severity of the problem is given by the fact that since 2006 when the ‘war’ started, 431,000 Mexicans – nearly half a million - have died from the violence. In 2012, Calderón’s last year in office, the annual homicide rate was 25,967, more than double when he started. In 2018, the last year of Peña Nieto’s term, it had risen further to 36,685. Final numbers for 2024, AMLO’s last year in office, have yet to be published, but are expected to be over 30,000. More people will have died under AMLO than any other Mexican presidency. The ratio of murders per 100,000 inhabitants stands at 24.0. one of the highest rates in Latin America.
Number of homicides nationwide, 1990-2023 (total)

Source: Source: Inegi
Note: Preliminary figures (January to December 2023), with a cut-off date of July 24, 2024, because the processes have not yet concluded generation of Registered Death Statistics
It should be noted that for multiple reasons drug-related violence is extremely difficult to eradicate, whichever government is in power. The cartels, often described as drug trafficking organisations (DTOs), smuggle cocaine, fentanyl, heroin, marijuana, and methamphetamines into the United States as well as running other illicit businesses including extortion and people trafficking. US demand for drugs is massive and price inelastic. One research team found that US citizens spent an estimated US$153bn on illicit drugs in 2017. With such massive demand, when a particular DTO is broken up or neutralised by law enforcement, other sources of supply quickly come into play. The DTOs appear to be in constant flux battling between themselves to control supply, trafficking routes, and distribution networks. Violence tends to spike when rival groups are contesting control of specific geographical areas, and to ebb when a single cartel is dominant.
During the Calderón presidency tens of thousands of army troops were deployed across the country to engage the cartels. The president deliberately avoided using state and municipal police who he regarded as corrupt. Partly at the suggestion of the US he followed a kingpins strategy focused on capturing or killing the top leaders. In fact, 25 of the top 37 drug kingpins were neutralised in this way, but new leaders rapidly emerged. Peña Nieto on the other hand sought to place greater emphasis on protecting civilians and intelligence-gathering. But he too relied heavily on the military and the Federal Police. He began a process designed to create a new gendarmerie. While homicides fell during the first years of Peña’s sexenio, they then picked up intensity again. Security experts have suggested that this was a reaction to the kingpin strategy, with fragmentation and turf wars now being fought by a new generation of criminal leaders.
In 2018 AMLO offered a new approach. The key policy of his incoming government was described as ‘abrazos, no balazos’ (hugs not bullets) and was focused on social spending and job creation. The idea was to provide alternative sources of livelihood for young men who would otherwise be recruited as sicarios (paid killers) for the cartels. In effect this was an attempt to tackle the socio-economic root causes of the drug war. There was also initially talk of legalising some drugs and offering possible amnesties to lower-ranking cartel members. However, these were not pursued. In addition, the military appear to have been instructed to remain in barracks and not to pro-actively confront the cartels. These left certain areas of the country completely unprotected. In a notorious incident in October 2019 the security forces seized Ovidio Guzmán López, a senior leader of the Sinaloa cartel, only to release him when surrounded by cartel gunmen with superior fire power.
There was also a major change in the new president’s thinking. As a left winger, for most of his career AMLO had opposed the use of the army in the fight against drugs, accusing it of terrorising rural communities and causing human rights violations. But in the years immediately prior to his election AMLO seems to have had a change of heart. He ordered the creation of a new force, the National Guard, which was initially staffed by the military and by members of the armed forces and was to be focused on fighting the cartels. Despite complaints from civil society and opposition groups AMLO insisted on reforming the constitution to place the National Guard under military control (via the national security ministry Sedena) which is led by the army’s commander in chief.
Although the homicide rate did dip a little at the tail end of AMLO’s administration, he failed to achieve a sustainable reduction. Various factors were in play. The hugs-not-bullets policy, by its very nature, would take many years to have an effect. The National Guard was at the time still in formation and was partly diverted to other duties – among them, increasing northern and southern border patrols in response to US pressure to reduce migrant transits through Mexico. Security cooperation with US law enforcement deteriorated after various incidents, including the arrest in the US on drug and money laundering charges of former Mexican defence minister General Salvador Cienfuegos in October 2020. As a result of all these factors the AMLO administration was widely seen as being passive and purely reactive to the spread of cartel-linked violence.
In the first week of her presidency Sheinbaum and her security minister Omar García Harfuch set out the new government’s security policy, which they said would be based on four pillars: these were first, to address the root causes of crime; second to consolidate the National Guard; third to strengthen intelligence and investigation; and, fourth to achieve absolute coordination between state and federal authorities.
The fist pillar appears to be a continuation of AMLO’s hugs-not-bullets approach, with Harfuch saying the government would focus on supporting vulnerable families, reducing poverty and inequalities. The National Guard, currently numbering 133,000 members, will now report directly to the army commander (who is also defence minister). It is likely to be further strengthened. As Harfuch put it, the Guard will be a “police institution” that nevertheless follows “military doctrine” and “military discipline”. President Sheinbaum said she did not intend to return to the war on drugs or to extrajudicial killings, saying that her government would rely on “prevention, focusing on the root causes, intelligence and presence”.
The new government says better intelligence will allow law enforcement not just to react to crimes but to anticipate them as well. The aim, Harfuch said, was to “analyse data, identify criminal patterns, and understand the dynamics in the areas with the highest incidence of crime”. A new intelligence division would be created within the security ministry.
Looking forward, Sheinbaum faces an unenviable task. As noted, the relentless demand for illicit drugs from the US will continue to fuel the cartel wars. In fact Sheinbaum has taken office amid a surge of fighting between rival internal factions of the Sinaloa cartel. Whether Donald Trump or Kamala Harris win the US election, a difficult re-set of US-Mexico security collaboration will be required. An ongoing deficit in security policy is the weakness of state and local police forces, and the wider criminal justice system which currently lacks the ability to efficiently investigate, capture, bring to trial, and sentence the country’s narco-criminals. The already weak criminal justice system may be thrown into further disarray by the reform of the judiciary and the introduction of inexperienced elected judges.