The US government has levied restrictions on a group of several persons and entities alleged of recruiting former Colombian soldiers to fight for and train a Sudanese paramilitary group which the US alleges of genocidal acts.
Announcing the sanctions on this week, the US Treasury Department stated the operation was largely composed of Colombian nationals and companies.
Numerous of retired Colombian troops have reportedly travelled to the Sudanese warzone to combat beside the Rapid Support Forces (RSF), a faction accused of severe violations including targeted ethnic killings and large-scale abductions.
The involvement of Colombian fighters initially emerged in 2024, after an inquiry which found that over three hundred retired troops had been recruited to fight – an event that led to an unprecedented apology from Colombia’s foreign ministry.
These South American veterans have long been considered as among the world’s most sought-after mercenaries due to their extensive battlefield experience acquired during a long-running domestic war, knowledge of advanced weaponry, and superior tactical education.
In the conflict, the contractors have reportedly trained child soldiers, provided drone warfare training, and engaged in frontline combat. One source previously stated that instructing minors was "horrific and irrational" but commented that "sadly, that is the nature of conflict".
Among those penalized was a dual national, a dual Colombian-Italian national and former army officer located in the United Arab Emirates. The government said he had a key part in recruiting and deploying ex-military personnel to Sudan. His spouse, Claudia Oliveros, was similarly targeted.
Also on the sanctions list was Duque Botero, a dual national who authorities say managed a business linked to managing finances and payments for the scheme. "Over the past two years, US-based firms connected to Duque carried out numerous wire transfers, worth millions," the official announcement stated.
Citizen of Colombia Mónica Muñoz Ucros was the other individual to be penalized, with the entity she oversaw accused of money transfers linked to Duque and his operations.
"Washington reiterates its demand for external actors to stop giving funding and arms to the combatants," the Treasury said in a statement.
An expert, senior analyst at the International Crisis Group, labeled the actions as a "highly important" milestone, noting that "calling out those who are doing the contracting is the proper strategy".
Furthermore, the Colombian government has enacted a law ratifying the global treaty against mercenarism, aiming to curb its citizens' long history in foreign conflicts and transform national security policy.
Sean McFate, a scholar on the subject, called for greater wariness, noting that "sanctions are necessary but insufficient for combating widespread use of contractors".
"It’s an illicit economy and operating from the Emirates, which is relatively sanction-proof," he commented. The United Arab Emirates has been widely accused of providing arms to the militia, claims it rejects. "This trend will probably continue," McFate warned.