ACSN paramilitaries seize Santa Marta streets, impose citywide shutdown after clash.

In the early hours of Thursday, 27 April, armed men belonging to the Conquering Self‑Defense Forces of the Sierra Nevada (ACSN) seized control of Santa Marta’s main thoroughfares in the Magdalena Department, Colombia. The paramilitary group declared a citywide shutdown, ordering all businesses, schools and public transport to suspend operations. The move followed a confrontation on Thursday afternoon in which Colombian security forces reportedly killed 13 ACSN members while clearing a remote village near the Sierra Nevada de Santa Marta. The ACSN’s swift retaliation has brought the coastal city, a key tourist hub and commercial center, to a standstill.

The ACSN is one of several criminal paramilitary organizations that emerged in Colombia’s 1990s peace process. Founded in the late 2000s, the group claims to defend local communities against “illegal” actors, but investigations by the National Directorate of Intelligence and the Colombian Army have repeatedly linked it to drug trafficking, extortion and violent attacks on civilians. Its operations are concentrated in the Sierra Nevada de Santa Marta, a region that is home to indigenous Kogi, Arhuaco, Wiwa and Kankuamo peoples and a vital corridor for the country’s coffee and cacao supply chains. The group’s presence has long been a source of tension, as it competes with state security forces for control of illicit economies and influence over local populations.

Security officials stated that the 13 ACSN members killed were part of a larger unit that had been engaged in a firefight with the army after the group had previously threatened to block the city’s main highway. The army cited intelligence reports indicating that the ACSN was preparing an armed takeover of Santa Marta to secure a lucrative drug trafficking route through the city. In response, the army deployed additional troops to the outskirts of Santa Marta and established checkpoints to prevent further escalation. The ACSN, however, issued a statement through a local radio station, warning that the city would remain closed until the “lawless” forces were removed from the region.

The incident underscores Colombia’s ongoing struggle to assert state authority in areas where paramilitary groups maintain de facto control. Despite the 2016 peace agreement between the Colombian government and the Revolutionary Armed Forces of Colombia (FARC), other armed groups such as the ACSN, the National Liberation Army (ELN), and various criminal syndicates continue to operate in rural and border zones. The Sierra Nevada region, in particular, remains a hotspot due to its strategic position along major drug trafficking routes and its valuable agricultural output. The recent clash highlights the fragility of security gains and the risk of violent reprisals when state forces confront entrenched paramilitary actors.

While this episode is geographically distant from Taiwan, it reflects broader regional security dynamics that can indirectly affect global supply chains. Colombia is a significant exporter of coffee, cacao, and tropical fruits, products that are integral to international markets. Any disruption in the country’s transportation infrastructure can ripple through global commodity networks, potentially affecting prices and availability. Moreover, the persistence of armed groups in Latin America poses challenges to international efforts to curb illicit trade, which can have cascading effects on global security and economic stability. As such, the incident serves as a reminder of the interconnected nature of modern geopolitical and economic landscapes, even when the immediate actors are far removed from East Asia.