Abelardo de la Espriella, a lawyer and businessman with no prior political experience, has just been declared the winner of Colombia’s presidential runoff, according to initial vote counts that show him ahead by 49.7% to 48.7%.

The 51‑year‑old, who has been a U.S. citizen since 2023, runs a campaign that touts a strict military crackdown on illegal armed groups, drug trafficking, and crime, pledging to end negotiations with guerrillas and cartels in favour of direct security action.

His victory has been met with large celebrations in Barranquilla, where supporters donned yellow football jerseys, waved Colombian flags and shouted slogans like “Petro out!” The event was described as “a new era” by de la Espriella, who called himself “El Tigre.”

Opponents of the result, including left‑wing candidate Iván Cepeda, have not yet conceded, citing concerns about the integrity of the vote and the potential for unrest. Protests in Cali saw demonstrators burning U.S. flags and police using tear gas.

Colombia’s internal armed conflict, which has lasted for decades, has escalated in recent years, with membership in FARC dissidents, ELN and the Clan del Golfo doubling. The conflict is intertwined with high coca production and illegal mining, both of which contribute to deforestation, pollution, and climate degradation.

The new president’s focus on a military solution raises questions about how this policy shift will affect environmental protection, air quality, indigenous rights, and climate‑related rehabilitation projects, especially in the biodiverse Amazon region.

While de la Espriella’s supporters praise his pledge to restore security and reduce drug trafficking, critics fear that a hard‑line approach could accelerate armed conflict, hinder peace negotiations, and erode fragile ecological safeguards implemented in the past.

Colombia’s shift to a new left–right political dynamic is part of a broader regional trend where several Latin American countries are moving toward hard‑line security leaders amid fears about crime, drug trafficking and instability.

The next few weeks will see official canvassing, possibly a legal contest, as the degree to which security measures might outweigh environmental safeguards remains uncertain.