In early August, U.S. President Donald Trump signed a not-so-secretive order to make plans for the use of U.S. military force against specific Latin American criminal organizations.

The plans were acted upon last month. The U.S. deployed three guided-missile destroyers to the waters off Venezuela, with the authority to interdict drug shipments.

This was not exactly a surprise move. During his inauguration in January, Trump signed an executive order designating some criminal groups as foreign terrorist organizations. At the time, he told a journalist this could lead to U.S. special forces conducting operations in Mexico.

Weeks later, six Mexican cartels were added to the foreign terrorist list, as were two other organizations: MS-13, an El Salvadoran gang and particular focus during Trump’s first presidency, and Tren De Aragua, a Venezuelan gang and frequent target during Trump’s presidential campaign in 2024.

In May, two Haitian groups were added to the list. Then, in July, another Venezuelan organization known as the Cartel of the Suns was added to a similar list because of its support for other criminal groups.

Fentanyl Brings a New Focus on Organized Crime

Illicit substances have flown across the U.S.-Mexican border for more than a century. But the emergence of the synthetic opioid fentanyl has shaken up U.S. responses to the illicit drug trade. 

Highly addictive and potent, fentanyl has caused a sharp increase in overdose deaths in the U.S. since 2013.

Successive U.S. governments have had little success at curbing fentanyl overdoses.

President Trump meets with El Salvador's President Nayib Bukele
President Donald Trump’s administration has emphasized El Salvadoran organization MS-13 as a gang to focus on during both his first and second terms. Here, Trump greets El Salvador’s President Nayib Bukele as he arrives at the West Wing of the White House, Monday, April 14, 2025, in Washington, D.C. AP Photo/Alex Brandon

Instead, an emerging political consensus portrays fentanyl as an external problem and therefore a border problem. 

When the Biden administration captured Ismael Zambada—one of Mexico’s most elusive drug barons who trafficked tonnes of cocaine into the U.S. for 40 years—he was charged with conspiracy to distribute fentanyl. Even progressive independent Bernie Sanders has pivoted to claiming border security was the solution to the fentanyl crisis.

But focusing on border security will do little to improve or save lives within the U.S.. 

Tougher border measures have never effectively curtailed the supply of other illicit substances such as cocaine, heroin, or methamphetamine. 

These measures do little to reduce harm or dependency within the U.S., where a largely unaccountable pharmaceutical industry first pushed synthetic opioids.

The question remains just what can be achieved by U.S. military operations.

How to Spot a Cartel

While the chemical emissions from fentanyl labs are easily spotted by drones, cartels and their operatives are decidedly more difficult to identify.

Criminal organizations in Mexico tend to be loose networks of smaller factions. They don’t operate in strict hierarchies like corporations or armies. 

The decentralised nature of these networks makes them extremely resilient. If one part of the chain is disrupted, the network adapts, sourcing materials from different places or pushing goods along different trafficking routes.

A syringe lies within a crack of a sidewalk
Drugs such as fentanyl continue to be an issue for many nations, including the United States. Photo by Randy Laybourne on Unsplash

But U.S. and Mexican security agencies often act as though cartels follow rigid hierarchies. The so-called “kingpin strategy” focuses on killing or arresting the leadership of criminal organizations, expecting it to render them unable to operate. 

However, this strategy often exacerbates violence, as rival factions compete to take over the turf of fallen kingpins.

Combating criminal groups with the military has already been a spectacular failure in Mexico. 

Former President Felipe Calderón declared war on the cartels in 2006, but his government lost credibility for leading Mexico into a war it could not win or escape. 

Tens of thousands of people are now killed every year, a dramatic increase from the historically low homicide rates in the years leading up to 2006. More than 100,000 have disappeared since the beginning of the war.

Outside interventions also run the risk of increasing support for criminal groups. 

In my research, I’ve found cartels sometimes market themselves as guardians of local people, successfully positioning themselves as more in touch with local people than the distant Mexican state. 

Cartels can also certainly make the most of deep antipathy towards U.S. intervention in Mexico.

All Cartels Are Not Equal

Deploying warships off the coast of Venezuela will have minimal impact on the fentanyl trade. 

Fentanyl enters the U.S. from Mexico and even from Canada—but Venezuela doesn’t feature in U.S. threat assessments for fentanyl.

Military action against the Cartel of the Suns will also be largely ineffectual, as this group exists in name only

Research has found this isn’t an actual cartel—rather, the name describes a loose network of competing drug-trafficking networks within the Venezuelan state. Figures in the government certainly have ties to the illicit drug trade, but they are not organised in a cartel.

In Mexico, however, the cartels do exist—albeit not as imagined by the U.S. government. 

A flag with three stripes: one green, one white, one red. In the center is an image of a bird.
Mexican leadership has worked with the American government to reduce drug trafficking across the two countries’ shared border. Photo by Obed Hernandez on Unsplash Credit: Obed Hernandez/Unsplashed.com

Given the U.S. has invaded and seized territory from Mexico in the past, U.S. military intervention has minimal prospect of support from Mexican governments.

Current President Claudia Sheinbaum has shown a willingness to accommodate the Trump government on matters of fentanyl trafficking. She has deployed thousands of members of the National Guard to police the border and major trafficking centres, such as the state of Sinaloa.

The Mexican government has also made two mass extraditions of captured crime bosses to the U.S.. As with the capture of Zambada by the Biden government, this is likely to be used as evidence the U.S. is winning the battle against fentanyl.

Then again, these crime bosses could be put to other uses. 

The U.S. government recently returned an imprisoned leader of MS-13 to El Salvador, even though he was indicted for terrorism in the U.S..

This move was part of the deal-making between the U.S. government and President Nayib Bukele of El Salvador. 

The U.S. government may be eager to take the fight to organised crime, but sometimes political expediency is a bigger priority.

This article is republished from The Conversation under a Creative Commons license. Read the original article.

This MFP Voices opinion essay reflects the personal opinion of its author(s). The column does not necessarily represent the views of the Mississippi Free Press, its staff or board members. To submit an opinion for the MFP Voices section, send up to 1,200 words and sources fact-checking the included information to voices@mississippifreepress.org. We welcome a wide variety of viewpoints.

The Conversation

Philip Johnson researches crime and violence in the Americas. He received his doctorate from the City University of New York.