After a promising decline in landmine incidents, Colombia is once again facing a surge in these explosive devices.
This grim reality was made evident in late January when the army seized more than 2,600 improvised explosive devices (IEDs), including landmines belonging to the National Liberation Army (Ejército de Liberación Nacional – ELN) in Tibú, in the Catatumbo region. Just days earlier, authorities had confiscated 300 landmines in the same area from FARC dissidents. Roads, rural paths, and farms in the region have become impassable.
The increase in demining efforts, landmine seizures, and suspected minefields reported by Colombian authorities in 2024 underscores that, despite the historic decline in landmine use since the 2016 Peace Agreement, criminal groups in the country continue to deploy these devices in their territorial disputes.
Throughout 2024, Colombia’s Office of the High Commissioner for Peace reported 998 incidents related to anti-personnel mines (APMs) and unexploded ordnance (UXO), including demining activities, reports of suspected minefields, and the seizure of these devices, most of which were handmade.
These figures represent an over 11% increase compared to the previous year, which saw 896 incidents. The upward trend has continued since 2021, when 316 incidents were recorded, followed by 412 in 2022. Experts consulted by InSight Crime agree that no single factor explains this surge.
A staggering 94% of the reported incidents were related to demining operations. Increased military activity in strategic areas and greater accessibility to former conflict zones—once heavily mined during the war between the Revolutionary Armed Forces of Colombia (Fuerzas Armadas Revolucionarias de Colombia – FARC) and the state before the 2016 Peace Agreement—account for many of these cases. However, other areas remain inaccessible to both military and humanitarian demining operations due to the control exerted by armed groups.
In Cauca and Nariño, the number of incidents surpassed those recorded immediately after the Peace Agreement: 58 and 69 incidents, respectively, that year. A similar trend has been seen in other departments with lower historical mine activity, such as Guaviare, Casanare, Bolívar, and Cesar.
Although Colombia signed the Ottawa Treaty banning the use and destruction of anti-personnel mines in 1997, it wasn’t until 2016 that the country’s largest guerrilla group and primary user of landmines—the FARC—committed to demining efforts as part of their demobilization.
“In the years following the Peace Agreement, the impact of landmines had dropped dramatically. Now, we are seeing figures reminiscent of the early post-agreement period, with the added problem that today, civilians are more affected than military personnel,” said Camilo Serna, director of the Colombian Campaign Against Mines (Campaña Colombiana Contra Minas), in an interview with InSight Crime.
Below are the three main reasons why landmine use has resurged in Colombia.
1. Criminal Disputes
Military pressure and ongoing territorial disputes in an increasingly fragmented criminal landscape have led some armed groups to resume planting landmines.
In Arauca, bordering Venezuela, authorities reported 101 incidents, mostly in the municipalities of Arauquita and Puerto Rondón, where the ELN’s Eastern War Front (Frente de Guerra Oriental) and the FARC dissidents’ 10th and 28th Fronts operate.
In Cauca and Nariño, key departments for coca cultivation, cocaine production, and trafficking corridors to Ecuador, 142 and 318 incidents were recorded, respectively. Most incidents occurred in the municipalities of Argelia and Tumaco, where FARC dissident factions and the ELN are locked in violent battles for control of these illicit economies.
“Today, armed groups are fighting each other and using landmines against one another. It is no longer a tactical tool primarily used against government troops moving through an area,” Serna explained.
In Catatumbo, a strategic border region with Venezuela, the ELN’s Northeastern War Front (Frente de Guerra Nororiental) has been clashing with the FARC dissidents’ 33rd Front since early January. Landmine use in this area has also prevented authorities from conducting demining operations for years.
According to Colombia’s Deputy Inspector General for Peace Agreement Monitoring, Javier Sarmiento, who has been tracking the humanitarian crisis in Catatumbo, the presence of landmines has made it impossible for over 50,000 displaced people to return home safely.
In other strategic regions for organized crime—such as Chocó, Cauca, and Arauca—increased military presence and demining operations have prompted armed groups to use more explosives to defend their territories.
2. The Fragmentation of FARC Dissidents
In 2024, Colombian authorities attributed 618 landmine-related incidents to the various dissident factions of the FARC. These figures, alongside those from 2023 (638 incidents), mark the highest landmine use by these groups since the Peace Agreement. Before then, FARC dissidents had never been linked to more than 222 such incidents in a single year.
The fragmentation of these groups—previously divided between the Estado Mayor Central (EMC) and Segunda Marquetalia but now splintering even further—has fueled clashes where landmines are a key battlefield tactic.
The ELN, a long-time user of landmines, was responsible for 164 of the incidents recorded in 2024.
Beyond the ELN and FARC dissidents, other armed groups were responsible for 47 landmine-related incidents in 2024—the highest number ever recorded for this category.
Among them, the Gaitanista Self-Defense Forces of Colombia (Autodefensas Gaitanistas de Colombia – AGC) stand out. Though they typically use direct armed force to exert control, their increasing involvement in landmine incidents suggests knowledge transfer. Following the FARC’s demobilization, some former guerrilla fighters were recruited by the AGC, bringing new tactics to the group’s military operations.
In fact, disputed territories—where the ELN, FARC dissidents, and AGC are vying for control—are the main hotspots for landmine replanting in Colombia.
3. The Rise of IEDs
IEDs can be built using easily accessible materials, some of which have become more durable. Technological innovations, such as the use of PVC tubes, have extended the lifespan of these devices by better protecting the internal ignition mechanisms, which may include electronic triggers or more sophisticated pressure-activated systems.
“It is now extremely difficult to control because a large number of groups and individuals know how to build both command-detonated improvised explosive devices and victim-activated landmines,” an anti-personnel mine expert told InSight Crime on condition of anonymity for security reasons.
In the end, the combination of ongoing armed group conflicts, tactical knowledge transfer between the key former FARC factions at the heart of the conflict, and the ease of manufacturing these devices has severely hindered Colombia’s demining efforts.
