Guatemala Ex-Colonel Says Military Helped CJNG Run Drugs 

Guatemala's military was corrupted by Mexico's CJNG, a former Guatemalan colonel has confirmed during a drug trafficking trial in the US.

Gulf Cartel Still ‘Public Enemy No. 1’ on US-Mexico Border: Homeland Security

Despite the CJNG moving into Mexico's northern state of Tamaulipas, the Gulf Cartel remains the foremost security threat along the US border.

Is Mexico’s CJNG Pushing the Gulf Cartel From Tamaulipas?

Some believe the CJNG’s invasion of Tamaulipas is all but a sure thing despite the Gulf Cartel’s historical roots, others are not convinced.

How Fentanyl Is Synthesized in Mexico

The difficulty of sourcing finished fentanyl from China has Mexican groups acquire precursor chemicals to synthesize fentanyl themselves.

5 Takeaways From US Indictments of Chapitos, Associates

US prosecutors have provided an unprecedented look at how the Chapitos operate in Mexico and how they dominate the fentanyl trade.

Are Fentanyl Trafficking Routes Shifting on the US-Mexico Border? 

Over the last eight months, US officials have seized more illicit fentanyl at Arizona’s ports of entry than anywhere else on the US-Mexico border.

Will Designating Mexican Crime Groups as Terrorists Help Fight Them?

US officials may designate Mexican crime groups as terrorists, but this mischaracterizes the threat. …

Caborca Cartel Resists Chapitos in Battle for Sonora, Mexico

The Chapitos and the Caborca Cartel are warring over fentanyl and methamphetamine drug routes in Sonora, Mexico.

‘Mula’: The Bridge Between MS13 and Mexican Mafia in Tijuana, Mexico

Nelson Alexander Flores Pacheco, alias "Mula", was the liaison between the Mexican Mafia and the MS13 in Tijuana, Mexico.

Matamoros, a Symptom of Mexico's Larger Illness

The state of Tamaulipas may not top Mexico's violence rankings, but the Gulf Cartel's fragmentation is raising concerns.

The Northeast Cartel and Criminal Hegemony in Nuevo Laredo, Mexico

The Northeast Cartel has established almost complete dominance of criminal economies in Mexico's border city of Nuevo Laredo.

Mexico's Gulf Cartel Doing Damage Control After Kidnapping, Murdering US Citizens

A faction of one of Mexico's oldest organized crime groups is doing damage control following the murder of two US citizens.