Colombian Minister of Labor, Antonio Sanguino, said the government was “on the verge” of issuing a decree outlining a path to collective reparations for trade unions at a rally in Medellín on May 1.

The government had previously pledged to pay state reparations to the trade unions movement, which it has recognized as a victim of the Colombian armed conflict. 

Colombia remains one of the most dangerous countries in the world for trade unionists, accounting for 63% of all anti-union murders worldwide between 1971 and 2023, according to the Ministry of Labor of Colombia, citing data from the International Labour Organization (ILO).

The ministry had previously announced that President Gustavo Petro would sign a decree on May 1 establishing “180 remedial measures for the labor movement.”

While the measure did not materialize on International Workers’ Day, Sanguino maintained it was imminent and hailed the symbolic importance of the historic plans, telling the crowd, “so that our dead are not forgotten, so that our disappeared are present in every action of the government.” 

The measures are part of the integrated collective reparation plan (PIRC) created under the umbrella of the peace process by the Victims Unit. The PIRC was developed in collaboration with labor unions and victims—a historic milestone for the Colombian trade union movement which suffered 15,481 acts of violence between 1970 and 2021.

On May 1st, thousands of Colombian workers gathered in Parque de las Luces in Medellín for International Workers’ Day.

The march began at the Teatro Pablo Tobón Uribe at 9:00 AM while an event scheduled for 12:30 p.m. saw the president and members of his cabinet give speeches alongside social organizations and labor unions.

Speaking at the rally, Sanguino praised the city and the province’s workers: “Antioquia is a people that resists—a resilient people that has fought for its rights and for workers’ rights since the time of María Cano… Today is not Labor Day—work is an activity. It is Workers’ Day.”

Meanwhile, the crowd chanted “Antioquia is not (ex-President Álvaro) Uribe.” Banners and signs praised Gustavo Petro and his administration. There were also slogans and imagery referencing figures such as Betsabé Espinal – the Antioquian woman who led the first women’s strike in Colombia – and Che Guevara.

“I went out to march for workers’ rights because today, as every year, each and every worker in this country is recognized,” said Gladys Maya, a teacher.

The Colombian government outlined its progress on labor rights and the measures included in the labor reform: increasing the “living” minimum wage, reducing working hours, improving pay for night shifts and Sunday work, and raising benefits for older adults.

“This is not a favor; it is justice,” said Claribed Palacios, president of the Unión de Trabajadoras Afrocolombianas del Servicio Doméstico – an Afro-Colombian domestic workers’ union  – regarding progress in labor rights for workers in the sector under the new government, such as mandatory formal employment contracts.

The rally also addressed the status of the pension reform, with Gustavo Petro urging the Constitutional Court of Colombia to fully approve it.

“Dignity is the foundation of the human person, and it is achieved when a person can feel that their rights are beginning to be realized and respected. Dignity is what we bring today,” said Petro.

The president also spoke about the upcoming elections, saying that his government will guarantee democracy through a “free and dignified vote,” but that he “hopes” the next administration will continue the change and social reforms.

“Let them not return us to horror; let them not return us to La Escombrera,” said Petro, referring to a mass grave uncovered in Medellín’s Comuna 13 district. 

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As the civilian death toll rises to 21, here’s a closer look at conflict in southwest Colombia.

Colombian armed group the Estado Mayor Central (EMC) has admitted its role in the massive roadside bomb near the small town of Cajibío that killed 21 civilians and injured 60 others in Cauca on April 25, the worst such attack in the country’s recent history.

In a message, the EMC said “we cannot hide or justify the error” which resulted from buried explosives aimed at military targets but which they detonated in a queue of vehicles held at a roadblock.

See also: Dissident bomb kills 20 civilians at roadblock in southwest Colombia

Cajibío was one of 37 coordinated attacks over five days in Cauca and the neighboring Valle department, conflict analyst Gerson Arias of Fundacion Ideas para la Paz (FIP) told The Bogotá Post.

“This was a message of terror from the EMC who wanted to show their military superiority in the region,” he maintained.

And despite admitting its error, the EMC showed no signs of slowing its offensive in recent days. On Thursday police experts defused 600 kilos of explosives found wedged in a drainage tunnel near Piendamó, Cauca, potentially avoiding a fresh tragedy.

Civilian targets

Military sources told news media after the Cajibío bomb that the EMC fighters had likely set a trap on the Via Panamericana, the main route linking Cali and Popayán. They buried the massive bomb then forced trucks to block the highway before retreating to the wooded hillsides as a long queue of traffic formed on the busy road.

When troops arrived in their heavily armored tanquetas – fortified troop carriers with turret guns – they sensed a trap and parked several hundred meters from the blocked road, then moved on foot through the wooded hillside to engage the guerrillas.

An EMC fighter then remotely detonated the roadside bomb striking 15 civilian vehicles, killing 21 people and injuring 60. The combatants escaped in the aftermath.

Arias believes that despite their original plan to kill military targets, the EMC fighters chose to blow up civilian vehicles: “They decided to detonate; it was a decision by the EMC.”

The resulting carnage was one of the highest civilian death tolls from a single incident in Colombian history, last seen on this scale in 2002 when a gas cylinder packed with high explosives detonated in a church in Bojayá, Chocó, killing 79 local people.

The deadly nature of homemade bombs, or ‘IEDs’ as they are called in military parlance (Improvised Explosive Devices), was shown again in August last year when 13 policemen were killed in Antioquia by a buried cylinder bomb that destroyed a helicopter.

Armed groups growing

Who was behind the Cajibío bomb? The EMC are remnants of the FARC’s 6^th Front, formed by guerrillas that rejected the 2016 peace process, now called ‘disidencias’, or dissidents.

The EMC still uses the FARC name, uniforms and logo, and its leaders mimic the ideology of former FARC icons such as ‘Tirofijo’ insisting it is a “political insurgent force”.

Last week Colombia’s defense minister was swift to blame the EMC’s Frente Jaime Martínez which is under the command of alias Marlon, a former FARC commander freed from jail in 2016 as a signatory to the peace deal but who returned to the fray.

The Cauca-based Frente Jaime Martínez numbered around 600 combatants, one of the most powerful units in the Bloque Occidental of the EMC, explained Arias. FIP data showed the EMC numbering around 3,300 fighters spread across southern Colombia, an estimated growth of 23% during 2025. Around 60% of those were concentrated in southwest Colombia.

“Cauca is a strategic point for illicit mining and narcotrafficking, all the armed groups are seeking dominance, and this means intensive recruitment of young people into their ranks,” said Arias.

The mountainous department is a heartland of Colombia’s illicit economies, straddling both the Andean cordillera and the Pacific lowlands with topography perfect for both hiding rebel armies and providing lush hillsides for coca crops and marijuana.

Cocaine production needs large cropping areas, 32,000 hectares of coca bushes covered the Cauca hillsides by the last count (Indepaz, 2024).  And since Spanish colonial times the lowland riverbeds have provided a source of gold, today mined illegally with destructive heavy machinery paid for by cocaine profits.

Inland links

Cauca has no proper roads linking the highlands coast, though there are numerous clandestine ‘conflict tracks’, mule trails and navigable rivers to the Pacific.  A labyrinth of mangrove swamps provides cover for boats running an estimated 70% of Colombia’s cocaine product to central America and beyond.

The department’s east is formed by the ‘Cauca Boot’, a foot-shaped chunk of mountainous terrain long held by rebel groups which penetrates as far as the Caquetá jungle linking the eastern Llanos plains and Amazon region to the Pacific coast.

This corridor created a vital link between the interior of the country and the EMC’s Bloque Oriental, in the eastern plains and jungles, Arias told The Bogotá Post.

Cauca was also bisected by the Via Panamericana, the highway running down the mountain and linking three main cities – Cali, Popayán, Pasto – and on to Ecuador to the south. This neuralgic route was easily blocked or attacked by armed groups, he said.

Combat units like the Frente Jaime Martínez would likely have autonomy from the top leadership of the EMC and could plan and execute their own actions, explained Arias.

“They articulate and communicate with the EMC structure, but are not necessarily subordinate,” he said.

Failed peace plan

The EMC was originally included in Petro’s sweeping Paz Total (Total Peace) initiative in 2022, but after repeated infractions by the armed group – including murdering four indigenous children the group had forcibly recruited – talks broke down in 2024.

In October that year Petro called off the talks and ordered the military to attack EMC heartlands in Cauca. The ensuing Operation Perseus sparked intense combat around the town of El Plateado in the Micay Canyon, historically a hideout for the FARC and now an EMC stronghold.

FIP has been critical of Paz Total and in February this year published data showing that armed groups had used the façade of peace talks to expand both their ranks and territory.

See also: Peace plan has caused more conflict, says thinktank.

According to Arias, Petro’s government failed to understand the strategic importance Cauca had to the armed groups, as well as underestimating the control the EMC had over local communities.

Many rural families were reliant on coca growing and gold mining in a region lacking state presence: “There’s been a historical process of armed groups coopting civilian and ethnic communities,” said Arias.

This was evident in the civilian uprisings – asonadas – against state forces leading to incidents such as the 57 soldiers forcibly detained by a community in El Tambo in June 2025.

But the armed groups also preyed on the host population, he said, particularly victimizing the indigenous communities which make up 20% of Cauca’s population. EMC commanders frequently forced indigenous youth to join their ranks, creating conflict with the Nasa and Misak people of the area.

Contacts ofThe Bogotá Post living in rural Cauca – who declined to be named – said that armed groups controlled communities with networks of spies and even used surveillance drones to monitor movements.

A person needing to travel in or out of the zone controlled by a particular armed group needed permission and had to carry ID cards issued by community councils under orders of the armed group.

Anyone rejecting these restrictions was threatened and displaced, and particularly social leaders who spoke out against the armed groups risked being assassinated: 12 in Cauca so far in 2026.

The Cauca cauldron

Strength in numbers was a contributing factor to EMC aggression in the region, said Arias. FIP data showed a steady increase in armed attacks against both civilian structures and military targets since 2016, peaking at 175 recorded incidents last year (see graph below).

Not all events involved state forces; the EMC was under pressure from rival groups such as the ELN, Segunda Marquetalia and EMBF dissidents. All want a share of Cauca’s illicit economies.

And while waging a conflict of asymmetric warfare, often resorting to terror tactics, the EMC was also demonstrating military dominance with armed drones that put the Colombian military on the back foot.

“Out of 500 attacks, 408 were using drones,” said Arias. “The conflict is changing direction, but state strategies are not adapting to respond to this new technology.”

But beyond a military response, the state needed to implement a strategy of well-planned and sustainable social interventions to stem the resurgence of the armed groups.

In Cauca, this was a huge challenge, said Arias. For now, groups like the EMC were sticking to illicit gold and narcotrafficking, even if it meant constant conflict to deter and weaken state forces.

“They are on the attack to show they are the bosses,” he said.

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Medellín, Colombia – Medellín Mayor Federico Gutiérrez prompted outrage last week after “censoring” a new book on M-19 guerrilla history at a public library.

Gutiérrez cancelled a talk of the book on April 21, saying that it glorifies terrorism and has no place in a public library.

The cancellation has drawn widespread criticism, with many observers citing the hypocrisy of the move one month after UNESCO designated Medellín as its 2027 World Book Capital.

Shortly before an event for the book at a public library on April 21, Gutiérrez announced on X: “This event will be cancelled. In Medellin, there will never be room for the glorification of terrorism. The M-19 was not a ‘romantic tale’: it was a terrorist armed group that left victims, pain, and death in Colombia.”

Attendants at the packed auditorium were visibly opposed to the measure, according to newspaper El País. Although staff removed microphones and speakers and the police surrounded the building, spectators remained in their seats.

“Our city respects the memory of the victims; no to propaganda for those that wielded weapons. This event has an obviously political character, and no public entity can host it,” the mayor continued. 

But the book’s author, sociology professor Jaime Rafael Nieto, insisted that the government should not be able to censor events like the one last week: “This is not a space for government officials, but for writers, artists and citizens,” he told Spanish newspaper El País via phone call. 

The April 19th Movement (M-19) guerrilla was founded in the early 1970s and became a violent urban actor, perpetrating kidnappings and killings in cities as well as symbolic crimes including the theft of libertador Simon Bolívar’s sword from its resting place and the Palace of Justice siege which left over 100 dead. 

Incumbent leftist Colombian President Gustavo Petro – who has routinely publicly clashed with rightist Gutiérrez – was an M-19 militant, operating under the nome de guerre “Aureliano”. 

He joined in the criticism of Gutiérrez’s move, writing on X: “The M-19 after making peace, was a legal movement with legal status. What you’re doing is censorship. Those who censor books end up burning them, and then they end up burning humans at stakes. Don’t censor; let minds and thoughts be free.”

Medellín’s history of books: a reformed city 

Colombia’s second-largest city has seen a 542% rise in bookstores over the past seven decades, and is home to over 110 bookstores and 25 libraries – many of which were transformed from former prisons and police facilities, as per UNESCO. 

“Medellín has become an international reference for urban and cultural transformation, where books and libraries play a crucial role in bringing positive social change. [Its] designation as World Book Capital 2027 is a powerful message on how culture can build peace and social cohesion,” noted Khaled El-Enany, UNESCO director-general. 

The city’s literary turn is thus inseparable from its broader reinvention. Having been named the world’s “murder capital” in 1991, when 16 people were murdered daily on average, it has spent decades recasting itself through culture and education. 

In 2004, then-mayor Sergio Fajardo – now a presidential candidate for the upcoming May 31, 2026 election – deployed a plan to combat structural violent patterns, investing in the city’s poorest neighborhoods. Libraries, metrocables and cultural centers were planted in the hillside of comunas, once the most dangerous neighborhoods in the Americas. 

Over a 15-year period, Medellin built 60 cultural facilities in areas with the highest poverty, historic violence and population densities, and by 2024, the city recorded 300 homicides per 100,000 people – the lowest since 1942. 

The result is a city that has made literary culture central to its identity. Every September, the Fiesta del Libro y la Cultura (Celebration of Books and Culture) – backed by $9 billion Colombian pesos ($2.5 million USD) from the mayor’s office – draws hundreds of national and international guests to its botanical gardens, parks and cultural centers. 

The city also hosts an annual edition of the Hay Festival, the prestigious Welsh literary gathering. 

Banned in the city of books 

Regardless of Mayor Gutiérrez’s disapproval, the event on April 21 continued, with organizers stressing they consulted with the attendees what they believed should be done. 

“There were three options: cancelling the event, going someplace different, or reaffirming our condition of citizens which occupy the city’s public space,” they said. Meanwhile, Nieto confirmed that the launch had been scheduled a month prior, and that the decision to go ahead in spite of the mayor’s outrage was an “act of civil resistance.” 

“[The book is about] interpreting how the M-19 emerged and what its characteristics were. It isn’t about justifying its actions, because then the investigation would take on a partisan bias, and that’s not the case,” the M-19: From War to Politics author added. 

The M-19 has become a contentious subject in Colombian politics since the election of Petro in 2022 as the country’s first leftist president, although the group demobilized in 1990. 

Petro joined the urban guerrilla at 17 years old, but not as a combatant. As per Colombian news outlet La silla vacía, he was arrested by armed forces in 1985, and spent 18 months in prison, where he directed the jail library. 

One of Petro’s greatest feats as an M-19 militant, in fact, was promoting the peace process that saw the group’s turn to peace and legality from 1989 to 1990. Most recently, the head of state celebrated his birthday on the anniversary of the armed group’s founding.

Nieto believes that studying M-19 history is imperative to understanding Petro’s government, and his book’s thesis: the M-19 was the Colombian armed actor that best knew how to combine war with politics.

“Every act of war produced political effects. And that made it a political actor,” he told El País.

Featured image: Federico Gutiérrez via X.

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