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The US government has enforced penalties on a operation of four individuals and four companies alleged of enlisting Colombian mercenaries to support and educate a Sudanese paramilitary group the United States claims of acts of genocide.

Network Composition

Announcing the restrictions on this week, the Treasury stated the network was largely composed of Colombian citizens and firms.

Hundreds of former Colombian military personnel have reportedly travelled to the Sudanese warzone to fight alongside the Sudanese RSF militia, a faction implicated in horrific war crimes including massacres based on ethnicity and widespread kidnappings.

Emergence of Involvement

The participation of ex-soldiers was first uncovered last year, prompted by an inquiry which revealed that over three hundred former soldiers had been hired to fight – an revelation that led to an unprecedented apology from the Colombian government.

Former Colombian military have historically been seen as among the world’s most sought-after mercenaries due to their extensive battlefield experience resulting from decades of civil war, knowledge of Nato equipment, and high-level combat training.

Role in the Conflict

In the conflict, the Colombians have been accused of teaching underage fighters, taught fighters to pilot drones, and engaged in frontline combat. A mercenary previously stated that instructing minors was "awful and crazy" but commented that "unfortunately that’s how war is".

Sanctioned Individuals

Among those targeted was a retired Colombian officer, a dual Colombian-Italian national and ex-soldier operating from the Dubai. The US authorities alleged he played a central role in hiring and sending mercenaries to Sudan. His spouse, Claudia Viviana Oliveros Forero, was similarly targeted.

Also on the penalty list was Duque Botero, a dual Colombian-Spanish citizen who the Treasury stated ran a firm linked to processing money and salaries for the scheme. "In 2024 and 2025, US-based firms linked to Duque engaged in numerous wire transfers, amounting to millions," the government release stated.

Citizen of Colombia Mónica Muñoz was the other individual to be sanctioned, with the entity she oversaw alleged to have financial transactions associated with Duque and his operations.

"The US once more urges outside forces to cease providing monetary and weaponry aid to the combatants," the agency said in a statement.

Analyst Commentary

An expert, from a conflict think tank, labeled the actions as a "major" milestone, saying that "calling out those who are doing the contracting is the right way to go".

It was also noted that, the Colombian government has enacted a statute endorsing the global treaty against mercenarism, designed to limit decades of Colombian involvement in international fights and reshape national security policy.

Another expert, an expert on mercenaries, called for greater wariness, stating that "restrictions are needed but not enough for dealing with widespread use of contractors".

"It’s an illicit economy and centered in Dubai, which is largely insulated from sanctions," he commented. The Emirati government has been repeatedly implicated of supplying weapons to the paramilitary group, claims it rejects. "Expect more Colombian mercenaries," he advised.