The Washington has imposed sanctions on a network of four people and four firms alleged of recruiting Colombian mercenaries to combat alongside and instruct a armed faction in Sudan that Washington accuses of acts of genocide.
Disclosing the measures on this week, the Treasury stated the operation was largely composed of Colombian nationals and companies.
Hundreds of ex-soldiers from Colombia have allegedly journeyed to the Sudanese warzone to operate with the Sudanese RSF militia, a faction linked to terrible atrocities such as targeted ethnic killings and large-scale abductions.
The involvement of Colombian fighters first came to light in 2024, following an inquiry which found that hundreds of retired troops had been recruited to participate in the war – an event that prompted an unusual statement of regret from officials in Bogotá.
These South American veterans have widely regarded as among the world’s most sought-after mercenaries due to their considerable warzone knowledge resulting from years of internal conflict, training on advanced weaponry, and superior tactical education.
In Sudan, the contractors have been accused of teaching child soldiers, provided drone warfare training, and fought directly on the frontlines. One source previously stated that training children was "terrible and insane" but commented that "regrettably, war operates that way".
Among those targeted was a dual national, a citizen of both Colombia and Italy and retired Colombian military officer operating from the UAE. The US authorities accused him a central role in hiring and sending mercenaries to Sudan. His wife, Claudia Oliveros, was penalized as well.
Also on the restricted list was Mateo Duque Botero, a dual national who the Treasury stated oversaw a company linked to processing money and salaries for the recruitment operation. "In 2024 and 2025, American entities linked to Duque engaged in multiple financial transactions, totalling millions of US dollars," the Treasury statement stated.
Individual Mónica Muñoz was the other individual to be targeted, with the firm she operated accused of wire transfers linked to Duque and his companies.
"Washington reiterates its demand for external actors to halt the flow of funding and arms to the combatants," the agency stated.
Elizabeth Dickinson, with the International Crisis Group, labeled the sanctions as a "highly important" milestone, saying that "targeting the enablers is the correct approach".
She added that, Colombia recently passed a law approving the International Convention Against the Recruitment and Use of Mercenaries, designed to limit its citizens' long history in foreign conflicts and reshape domestic defense strategy.
Sean McFate, a authority on private military contractors, urged more caution, saying that "sanctions are necessary but insufficient for addressing rampant mercenarism".
"It’s an illicit economy and based out of the UAE, which is largely insulated from sanctions," he commented. The UAE has been frequently alleged of supplying weapons to the paramilitary group, allegations it disputes. "Expect more Colombian mercenaries," McFate warned.
A seasoned esports analyst with over a decade of experience in competitive gaming and strategy development.