Overview

Mexico cartels, working alongside criminal groups embedded in the United States, exploit commercial tractor-trailers to transport narcotics across the U.S.–Mexico border (Drug Enforcement Administration, 2025). The substantial volume of legitimate trade across the border complicates the ability to check every truck. Addressing this threat requires a combination of coordinated enforcement by government agencies, and enhanced deterrence measures within the trucking industry to safeguard supply chains and support efficient commerce.

The Drug Enforcement Administration (DEA) and Department of Homeland Security (DHS) have intensified efforts at border access points (U.S. Customs and Border Protection, 2025, June 17). Advanced security protocols and collaborative DEA enforcement operations can significantly disrupt the cartels’ exploitation of North American overland supply chains.

This paper examines: (I) the recent history and current threats associated with cross-border drug trafficking, (II) how transnational crime organizations (TCOs) utilize trucks and cargo to move illicit drugs, (III) the DEA’s and DHS’s successes in combating drug trafficking in 2025 and 2026, and (IV) future implications for the trucking industry.

I. Recent History and Current Threats

The DEA’s 2025 National Drug Threat Assessment (NDTA) underscores how Mexican cartels have “fundamentally altered the drug and criminal landscapes in North America” and how they pose a “dire threat to public health” (Drug Enforcement Administration, 2025). This warning is not new. The United States has been confronting an influx of drugs since President Richard Nixon’s 1969 Operation Intercept deployed two thousand customs officials to stem the flow of drugs across the border (Reid, 2022). Since that time, the U.S. has invested substantial resources to curb illegal drugs and related criminal activity.

Commercial freight traffic provides an ideal environment for traffickers. According to the U.S. Department of Transportation’s Bureau of Transportation Statistics, millions of commercial trucks cross the U.S.–Mexico border every year, moving hundreds of billions of dollars in goods between the two countries (Bureau of Transportation Statistics, 2026). The immense scale and speed of this commerce complicate inspection efforts and create opportunities for TCOs to hide narcotics within legitimate shipments.

The current administration continues this long-standing campaign. With multiple points of entry spanning thousands of kilometers, border security is a national security priority (House Armed Services Committee, 2025). U.S. expenditures on the “war on drugs” have cumulatively exceeded $1 trillion in 2026 (Bove, 2026). Anticipating a significant funding package this year, the DEA and supporting law enforcement agencies expect to expand cross-border interdiction operations. Agencies such as the Federal Bureau of Investigation (FBI), Central Intelligence Agency (CIA), Department of Homeland Security (DHS), U.S. Customs Border Protection (CBP), U.S. Marshals, and local law enforcement bodies, support the DEA’s mission.

Currently, TCOs rooted in Mexico dominate the market for fentanyl and methamphetamine, moving these drugs along with cocaine, heroin, and marijuana through southwestern corridors. Cartels employ various shipping methods but rely primarily on tractor-trailers for bulk shipments. Criminal connections within the U.S. distribute the narcotics to major hubs (Drug Enforcement Administration, 2025). Couriers then transport them to downstream markets.

II. How TCOs Use Trucks and Legal Cargo

Commercial trucking at the U.S.–Mexico border is a primary haulage method used in the illicit drug market (Mahoney, 2020). Cartels’ dependence on the commercial trucking industry for large-scale drug movement increases risks for legitimate carriers. This activity often involves broader crime and fraud. The sheer volume of commercial trucking, frequent trips, and numerous hidden compartments make trucking an appealing method for traffickers.

Balancing security with the need to expedite commerce is challenging. It is impractical to inspect every vehicle. Refrigerated trucks can pose added risk because their dense padding may be used to cleverly disguise contraband. Their transport of perishable goods imposes time constraints, fostering urgency at checkpoints. The large cargo volume and heavy insulation make inspections labor-intensive and time-consuming.

Traffickers are highly adaptive, employing creative methods to smuggle drugs (Drug Enforcement Administration, 2025). Common tactics include packing unlawful drugs, alongside legitimate goods, in semi-trucks to pass as lawful shipments. Other inventive strategies involve hiding substances inside trailer compartments, insulation, fuel tanks, axle housings, and other vehicle structures.

One notable scheme involved millions of dollars’ worth of methamphetamine concealed within a shipment of frozen mangoes at the World Trade Bridge in Laredo, Texas (Lopez, 2020). Another example occurred at the opposite end of the border. Nearly 1,000 pounds of liquid methamphetamine were hidden in a truck’s fuel tanks at Otay Mesa (Morgan, 2026).

Limitations in inspection technology cause challenges in supply chain security. In 2019, funding enabled the deployment of non-intrusive inspection units which are useful for scanning commercial vehicles. However, as of January 2026, the U.S. House Committee on Homeland Security reported obstacles to achieving 100 percent scanning of all commercial and passenger vehicles. These challenges include: a lack of scanners at nine land ports of entry due to space constraints, higher-than-expected implementation costs, and, delays in projected schedules (U.S. House Committee on Homeland Security, 2026).

With additional resources, CBP will be better equipped to keep pace with increasingly sophisticated drug-running operations.

III. Government Seizures, Enforcement, and Impact

According to the DEA.gov website, in 2025 and early 2026, DEA campaigns against cross-border drug trafficking caused disruption to the Jalisco New Generation Cartel (CJNG) and other related organizations. The DEA and supporting agencies confiscated 47 million fentanyl pills, nearly 10,000 pounds of fentanyl powder, over 560,000 pounds of cocaine, more than 170,000 pounds of methamphetamine, and, thousands of pounds of heroin (Drug Enforcement Administration, 2025, September 29).

Most seizures occur at high-volume ports handling primarily commercial truck traffic (American Immigration Council, 2025). For example, Laredo manages about 39% of U.S.–Mexico trade. On February 20, 2026, at this port, CBP discovered $5.9 million worth of methamphetamine at the World Trade Bridge, hidden in a commercial truck (U.S. Customs and Border Protection, 2026).

DHS also announced that CBP confiscated more than 615,000 pounds of illicit drugs between January 2025 and January 2026 at the World Trade Bridge, representing an 8% increase over the previous year. In addition, CBP seized more than $6.8 million in cocaine (U.S. Customs and Border Protection, 2026, February 14). These outcomes demonstrate effective use of available resources and strategically targeted inspections.

By disrupting cartel supply chains, the DEA and supporting agencies save lives. Well-coordinated multi-agency operations have a substantial impact against TCOs. Seizing large shipments interrupts TCOs’ logistics networks, preventing overdoses and potential deaths.

IV. Implications for the Trucking Industry

Beyond the unusual methods used by cartels to transport drugs, evolving technologies increase the risk that legitimate haulers may unknowingly become involved in cartel supply chains. Online freight platforms and spoofed identities offer opportunities for fraudulent activities. Industry experts have reported how fictitious companies create confusion. Fraudulent documentation and complex subcontracting arrangements make it difficult to identify illegal patterns.

Some truck drivers are unaware or may be coerced, while others are knowingly complicit. Recent arrests in the trucking industry highlight potential connections to drug trafficking within organized crime rings (Mahoney, 2020). Unfortunately, these bad actors damage the industry’s reputation and necessitate increased scrutiny.

According to the American Trucking Associations (2026), the trucking industry recognizes these challenges and is actively responding by:

• enhancing driver vetting,
• improving oversight of brokers,
• implementing GPS technology,
• complying with regulations,
• fully cooperating with law enforcement agencies,
• taking part in joint initiatives, and
• sharing information

Positive changes may also include stricter chain-of-custody documentation, improved subcontracting and carrier training, and regular cargo integrity checks for refrigerated loads and trucks traveling high-risk routes. All stakeholders—including dispatchers, drivers, and warehouse staff—benefit from training to recognize signs of illegal activity and follow escalation protocols when necessary.

These additional measures address weaknesses in the supply chain. New procedures will: facilitate thorough inspection of refrigerated trucks, identification of phantom agents and entities, and careful review of mixed loads that may contain illegal drugs.

V. Conclusion: Balancing Trade and Security

Commercial trucking is essential at the US–Mexico border. Despite major successes in disrupting narcotic transportation, cartels continue to pose a persistent national security threat. Ports of entry remain vulnerable due to cartels’ creative concealment methods, fraudulent documentation, and fictitious entities.

Long-term success in countering cartels requires sustained efforts among government leaders in the United States and Mexico, law enforcement agencies, and the trucking sector. Policies that promote cross-border collaboration must balance aggressive interdiction with the need for efficient trade. Improving and expanding inspection technology, fostering better communication between administrations and businesses, and providing comprehensive training and security practices for the trucking industry will help limit cartels’ exploitation of the North American supply chain.

The next step for trucking companies is to pursue independent consultations to assess risks and to design an adaptable, scalable security and risk mitigation approach. Leveraging industry expertise, proven processes, and the latest technology to protect assets, Gravick Group experts are prepared to create a customized plan for the trucking sector partners. For information about our solutions, click here: https://gravick.com/our-solution/ 

References

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