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The Washington has levied restrictions on a operation of four individuals and four companies alleged of enlisting South American contractors to support and educate a militia force in Sudan the United States claims of acts of genocide.

Network Composition

Revealing the measures on Tuesday, the American treasury stated the scheme was primarily made up of Colombian citizens and firms.

Scores of former Colombian military personnel have reportedly travelled to Sudan to fight alongside the Sudanese RSF militia, a faction implicated in terrible atrocities including massacres based on ethnicity and widespread kidnappings.

Emergence of Involvement

The participation of ex-soldiers first came to light in 2024, following an investigation which revealed that more than 300 retired troops had been hired to engage in combat – an discovery that prompted an unprecedented apology from Colombia’s foreign ministry.

Former Colombian military have long been considered as some of the most in-demand contractors globally due to their vast combat experience resulting from a long-running domestic war, familiarity with advanced weaponry, and superior tactical education.

Activities in Sudan

In the conflict, the Colombians have allegedly instructed minors, taught fighters to pilot drones, and fought directly on the frontlines. A mercenary remarked that instructing minors was "terrible and insane" but commented that "regrettably, war operates that way".

Sanctioned Individuals

Among those sanctioned was a dual national, a individual with dual citizenship and ex-soldier based in the UAE. The government alleged he played a pivotal function in enlisting and transporting mercenaries to Sudan. His wife, Claudia Oliveros, was similarly targeted.

Also on the sanctions list was Mateo Duque Botero, a dual Colombian-Spanish citizen who the Treasury stated ran a firm linked to managing finances and payments for the network. "In 2024 and 2025, US-based firms associated with Duque carried out multiple financial transactions, totalling millions of US dollars," the Treasury statement stated.

Citizen of Colombia Mónica Muñoz was the final person to be penalized, with the firm she operated alleged to have money transfers connected to Duque and his operations.

"The United States again calls on outside forces to halt the flow of financial and military support to the combatants," the agency announced.

Analyst Commentary

Elizabeth Dickinson, with the International Crisis Group, called the measures as a "major" step, stating that "calling out those who are doing the contracting is the right way to go".

Furthermore, Bogotá has enacted a statute endorsing the anti-mercenary convention, aiming to curb its citizens' long history in international fights and reshape national security policy.

Sean McFate, a authority on private military contractors, advised additional measures, noting that "sanctions are necessary but insufficient for dealing with rampant mercenarism".

"This is a shadow economy and centered in the Emirates, which is largely insulated from sanctions," he said. The United Arab Emirates has been repeatedly implicated of providing arms to the militia, claims it rejects. "Expect more Colombian mercenaries," McFate warned.