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Politics & Governance26 Oct 2026 · about 6 min

Coalition against the cartels: Barros pushes for Chile to remain an observer and Kast calls an extraordinary meeting

The brief

The American Coalition Against Cartels, or A3C, is a proposed regional security initiative promoted by the United States through its Southern Command. Its purpose is specific: coordinate countries in combating organized crime and drug-trafficking cartels. It is presented as a complement to the broader Shield of the Americas. The distinction matters because the Shield pursues comprehensive goals, especially economic ones, while the A3C concentrates on public security. Early U.S. proposals reportedly included having the Southern Command direct the military forces of participating South American countries. Chile’s defense minister pushed to moderate those terms. The coalition’s final shape remains under discussion. Chile’s government has not yet decided whether to join, and Defense Minister Fernando Barros favors remaining an observer. He has argued that participation must respect each country’s sovereignty, laws, and right to withdraw.

01

What is the American Coalition Against Cartels (A3C), and what is it intended to do?

The American Coalition Against Cartels, or A3C, is a proposed regional security initiative promoted by the United States through its Southern Command. Its purpose is specific: coordinate countries in combating organized crime and drug-trafficking cartels. It is presented as a complement to the broader Shield of the Americas.

The distinction matters because the Shield pursues comprehensive goals, especially economic ones, while the A3C concentrates on public security. Early U.S. proposals reportedly included having the Southern Command direct the military forces of participating South American countries. Chile’s defense minister pushed to moderate those terms.

The coalition’s final shape remains under discussion. Chile’s government has not yet decided whether to join, and Defense Minister Fernando Barros favors remaining an observer. He has argued that participation must respect each country’s sovereignty, laws, and right to withdraw.

02

What decision is Chile’s government trying to make about joining the coalition, and why is Chile currently considering remaining an observer?

Chile’s government is deciding whether to join the American Coalition Against Cartels or continue participating only as an observer. The decision has divided the Executive. Some Foreign Ministry and La Moneda officials support signing, especially after Chile joined the Shield of the Americas, while Defense Minister Fernando Barros argues for caution.

Chile is considering observer status because the coalition initially involved stronger military participation and possible foreign command. That approach does not fit Chile’s institutional reality. In Chile, the armed forces do not normally perform the public-order duties carried out exclusively by the police.

Barros therefore wants Chile to avoid joining unless the terms change. He supports rules based on national sovereignty, each country’s laws, and voluntary withdrawal. The debate remained unresolved when President José Antonio Kast called an extraordinary meeting at La Moneda, with the government still seeking a common position.

03

How many countries is the United States seeking to bring together at the meeting in the Dominican Republic, and what documents are they expected to sign?

The United States plans to bring almost 20 countries from the region together in the Dominican Republic on Tuesday, October 27. The meeting is intended to formalize a strategic initiative connected to what Washington calls the Donroe Doctrine.

The participating countries are expected to sign two documents. One is a governance framework, which would establish how the initiative is organized. The other is a strategic plan, which would set out its broader direction and priorities. The article does not provide further details about either document’s final wording.

The meeting matters directly for Chile because Washington is pressing the country to participate in the A3C. Chile had already joined the Shield of the Americas on September 22, but its government remained divided over whether that decision should be followed by membership in the security coalition. The issue prompted an extraordinary meeting in La Moneda.

04

Why does Chile’s defense minister want the coalition’s rules to protect national sovereignty, follow each country’s laws, and allow members to leave?

Fernando Barros wants the A3C’s rules to protect sovereignty because the coalition initially contemplated a strong role for the U.S. Southern Command. Early negotiations reportedly placed that command in charge of the participating South American countries’ military forces. Barros viewed that arrangement as incompatible with Chile’s autonomy.

He therefore pushed for three safeguards. The coalition should operate under each country’s sovereignty, comply with its national legislation, and allow members to withdraw whenever they choose. These conditions would prevent a regional initiative from automatically imposing foreign command or obligations on Chile.

The safeguards also respond to Chile’s domestic structure. Chilean armed forces are not part of the public-order work performed exclusively by the police. Barros believes Chile has little room to join if the coalition requires a different model. For him, participation must first fit Chilean law and institutional practice.

05

What could change for Chile’s military and police if the coalition required armed forces to take a larger role in public security?

If the coalition required armed forces to take a larger public-security role, Chile would face pressure to change how security responsibilities are divided. The article states that Chile’s armed forces do not perform the public-order duties carried out exclusively by the police. That makes the coalition’s proposed military emphasis especially sensitive.

The concern became concrete when early negotiations reportedly included placing South American military forces under the U.S. Southern Command. Defense Minister Fernando Barros opposed excessive militarization and foreign command. He sought terms that would let Chile participate without abandoning its sovereignty or legal framework.

No such change has been announced. The government is still deciding whether to join the A3C, and Barros favors observer status. The immediate consequence is therefore political and institutional debate, not a confirmed transfer of public-security duties from Chilean police to the armed forces.

06

How are the Shield of the Americas and the A3C related, and why can Chile join one without joining the other?

The Shield of the Americas and the A3C are linked U.S.-backed initiatives, but they have different purposes. The Shield is described as the political arm of the United States and pursues comprehensive aims, particularly economic ones. The A3C is narrower, focusing on public security, organized crime, and drug cartels.

The A3C was promoted through the U.S. Southern Command as an additional initiative to complement the Shield. The two therefore fit together: one addresses broad political and economic coordination, while the other concentrates on security. Their connection does not make them a single organization or require identical membership.

According to U.S. diplomatic sources cited in the article, countries are free to participate in one initiative and not the other. Chile joined the Shield on September 22, but the government can still remain an A3C observer. That distinction is central to the debate inside La Moneda.

07

Why is organized crime difficult for one country to fight alone, and how can international cooperation help address drug cartels that operate across borders?

Organized crime is difficult for one country to fight alone because criminal networks and drug cartels can operate across national borders. A country may confront activity inside its territory while related people, money, drugs, or logistics remain elsewhere. This cross-border structure makes cooperation between governments important.

International cooperation can help countries coordinate security efforts against networks that do not stop at a border. A regional coalition such as the A3C could provide a framework for countries to work together against organized crime and cartels. The article identifies that goal, but it does not specify the coalition’s operational tools or procedures.

The Chilean debate shows why cooperation also needs limits. Fernando Barros wants any arrangement to respect national sovereignty, domestic laws, and the right to withdraw. Chile’s government is therefore weighing the possible security benefits against concerns about militarization and foreign command, while currently considering observer status.

This brief was written by AI from the original reporting and checked by other models. Names, figures and quotes come from the source; read it for full context.

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