The Biden administration revoked the terrorist designation of Colombia’s former FARC guerrilla army on Tuesday, five years after the rebel group signed a peace deal with the government. However, it imposed the same designation on two splinter groups that are still fighting in remote pockets of the South American country.

The FARC holdouts newly designated by the United States as foreign terrorist organizations are the Revolutionary Armed Forces of Colombia-People’s Army – known by the Spanish acronym of FARC-EP — and Segunda Marquetalia.

Here are more details on these newly designated terrorist groups:

HOW DID THE SPLINTER GROUPS ARISE?

After five decades of internal conflict that killed an estimated 26,000 people and forced more than 6 million to flee their homes, the Revolutionary Armed Forces of Colombia signed a peace deal in which 13,000 fighters gave up their weapons in exchange for numerous concessions from the government, including development programs for rural areas and the opportunity for former guerrilla leaders to participate in local politics and avoid time in prison.

Also Read | Pablo Escobar’s cocaine hippos recognised as people in major US court order

But a group of about 1,000 fighters led by commander Néstor Gregorio Vera refused to lay down their weapons and continued to conduct attacks and kidnappings in southeastern Colombia. These fighters now use the acronym FARC-EP.

In 2019, three years after the peace deal was signed, former FARC commander Iván Márquez announced he would be taking up arms again in a video shot at an undisclosed location, creating the Segunda Marquetalia group.

Márquez, whose real name is Luciano Marin, was the FARC’s lead negotiator during peace talks with the government. He accused the Colombian government of not keeping its promises and of failing to stop the murders of dozens of former FARC fighters. When Márquez announced his return to arms, the former FARC commander and some of his close associates were under investigation for drug trafficking in Colombia and the United States.

HOW LARGE ARE THESE HOLDOUTS AND HOW DO THEY OPERATE?

The FARC splinter groups are fragmented and lack a central command structure. Security analysts in Colombia also say they are not ideologically oriented and are mainly focused on controlling drug trafficking routes, illegal mines and other illicit economies.

A report published in September by the Institute for Peace and Development Studies, a Colombian research group, estimates the splinter groups have around 5,000 members, most are new recruits, though there are also hundreds of former FARC fighters in their ranks.

The Colombian government says the FARC-EP and Segunda Marquetalia have assassinated human rights leaders, as well as dozens of former fighters who gave up their weapons during the 2016 peace deal. Colombian officials also say these splinter groups were behind a recent attempt to assassinate President Iván Duque in northeastern Colombia.

WHAT DOES BEING DESIGNATED A TERRORIST ORGANIZATION ENTAIL?

Members of Segunda Marquetalia and FARC-EP cannot hold accounts in U.S. banks or receive any kind of support from the U.S government or its contractors, and any private organization that does business with them also risks being sanctioned. Being designated as terrorist groups could also make these organizations a priority for the U.S. military.

WHAT HAPPENS WITH THE ORIGINAL FARC GROUP?

The group formerly known as the FARC are now a political party in Colombia called the Common People’s Party, which has 10 seats in the nation’s congress. After being removed from the U.S terrorist list the group’s members will be able to participate in U.S. funded activities such as programs to remove landmines in Colombia’s countryside or rural development programs that benefit farmers in Colombia.

The State Department said removing the FARC’s terrorist designation will facilitate peace building efforts in Colombia and work with former combatants, but it also pointed out that former FARC leaders can still face charges in the United States for drug trafficking and other crimes.