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The United States has levied restrictions on a operation of four people and four firms alleged of hiring Colombian mercenaries to fight for and train a militia force in Sudan which the US alleges of acts of genocide.

Network Composition

Revealing the sanctions on this week, the US Treasury Department stated the scheme was primarily made up of Colombian nationals and companies.

Hundreds of ex-soldiers from Colombia have allegedly journeyed to the conflict in Sudan to fight alongside the Rapid Support Forces (RSF), a faction linked to horrific war crimes such as ethnically targeted slaughter and mass abductions.

Emergence of Involvement

The involvement of Colombian fighters first came to light last year, prompted by an investigation which disclosed that over three hundred ex-military personnel had been recruited to fight – an discovery that resulted in an rare mea culpa from officials in Bogotá.

Former Colombian military have historically been seen as some of the most in-demand contractors globally due to their extensive battlefield experience resulting from decades of civil war, training on Nato equipment, and elite military instruction.

Role in the Conflict

In the Sudanese theater, the mercenaries have been accused of teaching underage fighters, taught fighters to pilot drones, and engaged in frontline combat. An individual involved remarked that training children was "terrible and insane" but commented that "regrettably, war operates that way".

Targeted Persons

Among those targeted was a retired Colombian officer, a individual with dual citizenship and former army officer based in the Dubai. The US authorities accused him a pivotal function in recruiting and deploying ex-military personnel to Sudan. His wife, Claudia Viviana Oliveros Forero, was also sanctioned.

Also on the restricted list was Duque Botero, a individual with Colombian and Spanish citizenship who officials alleged oversaw a company accused of handling funds and payroll for the network. "In 2024 and 2025, US-based firms linked to Duque carried out multiple financial transactions, totalling millions of US dollars," the government release noted.

Colombian national Mónica Muñoz Ucros was the other individual to be targeted, with the firm she operated alleged to have money transfers associated with Duque and his businesses.

"The US once more urges external actors to cease providing financial and military support to the warring parties," the agency announced.

Expert Analysis

An expert, with the International Crisis Group, described the actions as a "very significant" development, stating that "identifying the recruiters is the right way to go".

She added that, the Colombian government has enacted a law approving the anti-mercenary convention, aiming to curb years of participation by its nationals in overseas wars and transform national security policy.

Sean McFate, an expert on mercenaries, called for greater wariness, saying that "penalties are required yet incomplete for combating widespread use of contractors".

"This is a shadow economy and centered in the Emirates, which is difficult to penalize," he commented. The Emirati government has been frequently alleged of arming the RSF, allegations it disputes. "Expect more Colombian mercenaries," McFate warned.