Latin America Regional Conflicts — September 13, 2026

Conflict assessment for the Latin America theatre, compiled September 13, 2026 from open-source reporting.

Assessment Overview

This cycle tracks 7 significant developments across the Latin America theatre, of which 6 are assessed at HIGH severity or above. The most intense flashpoints remain Catatumbo, Norte de Santander, Colombia, Southern Caribbean maritime corridor off Venezuela, Port-au-Prince and Kenscoff, Haiti.

Colombia's De la Espriella terminates Petro-era peace tracks and authorizes US military operations on Colombian soil

Severity: CRITICAL

President Abelardo de la Espriella, sworn in 7 August 2026 after the narrowest presidential runoff in Colombian history against Ivan Cepeda, issued three executive resolutions on 9 September 2026 formally dismantling what remained of 'Paz Total': Resolution 391 revoked the ELN negotiating delegation, Resolution 390 revoked Clan del Golfo representatives, and Resolution 389 closed the Putumayo location zone, citing an absence of verifiable willingness for peace and continued ELN offensives in Catatumbo. The MercoPress first-month assessment published 7 September documented a comprehensive reversal of Petro's foreign policy, including restoration of relations with Israel, recognition of Israeli sovereignty over the Golan Heights on 10 August, recognition of Moroccan sovereignty over Western Sahara, withdrawal from China's Belt and Road Initiative, and accession to the US-led 'Shield of the Americas' counter-narcotics coalition. Most consequentially, US Secretary of War Pete Hegseth announced that Bogota had authorized US military operations on Colombian territory, a step no Colombian official has publicly confirmed, with stated priorities covering the Ecuadorian border, Pacific maritime surveillance, and air fleet rehabilitation. Bogota has further declared that all dealings with Caracas will now be channelled through the US State Department, effectively subcontracting bilateral Venezuela policy to Washington. Analysts including Sandra Borda have warned that this 'pre-emptive diplomacy to please' removes Colombian strategic autonomy at a moment of acute hemispheric uncertainty and forecloses off-ramps with an ELN that retains territorial control in Catatumbo and Arauca.

Rubio signals potential unilateral US military action inside Mexican territory; Sheinbaum rejects intervention

Severity: HIGH

US Secretary of State Marco Rubio stated on 10 September 2026 that Mexico is not doing enough against drug cartels and that Washington could act unilaterally inside Mexican territory, asserting that 'there are territories, vast territories in Mexico, that are not governed by the state. They are controlled by these narco-terrorist organizations.' The statement escalates a threat line Trump opened on 9 January 2026 when he said the US would 'start now hitting land' against cartels, and builds on the February 2025 Foreign Terrorist Organization designation of six Mexican cartels, expanded on 16 July 2026 to include the Juarez Cartel and Los Viagras. President Claudia Sheinbaum has categorically rejected foreign military intervention, insisting 'it's not going to happen' while pointing to Mexican results: roughly 40,000 arrests for serious crimes and a 40 percent homicide reduction between October 2024 and December 2025, 320 tons of drugs seized, and the transfer of 37 accused cartel figures to US custody on 20 January 2026. Mexico is simultaneously negotiating relief from US steel, aluminium and vehicle tariffs, a linkage Sheinbaum acknowledged at her 3 September mananera while insisting any agreement be reached 'without subordination.' The dual-track pressure of tariff leverage plus unilateral-strike threats leaves Sheinbaum with narrowing room to demonstrate sovereignty without rupturing the trade relationship that underpins Mexico's growth.

Venezuela's post-Maduro transition under Delcy Rodriguez enters contested electoral phase

Severity: HIGH

Delcy Rodriguez, sworn in as acting president on 5 January 2026 after US forces captured Nicolas Maduro and Cilia Flores in Caracas on 3 January, continues to govern an unconsolidated transition without a scheduled national election. Washington lifted sanctions on Rodriguez personally on 2 April 2026 in recognition of her authority, while Interior Minister Diosdado Cabello, who commands networks across the security apparatus and pro-government colectivos, remains designated and constitutes the principal internal threat to her position. Rodriguez stated in early September that talks with the United States on sanctions relief and the creation of conditions for an electoral process are continuing, but declined to name a date; the US-facilitated dialogue between the government and a segment of the opposition began in August 2026 and is scheduled to resume in October. The government has released hundreds of political prisoners and legislated a blanket amnesty covering 1999 to the present, while the National Assembly approved a hydrocarbons reform designed to admit foreign capital, international arbitration and external audit into the oil sector. Maria Corina Machado has publicly cautioned the Trump administration against transacting with residual Chavista figures, framing the transition as 'unstoppable' but warning that legitimizing PSUV holdovers risks entrenching them. The central risk through Q4 2026 is a Cabello-aligned security bloc spoiling the electoral timetable, with colectivos and FAES remnants as the instrument.

Operation Southern Spear lethal maritime strike campaign passes 227 dead amid Pentagon inspector general review

Severity: HIGH

The US lethal interdiction campaign that began on 2 September 2025 with a strike on a Venezuela-departing vessel killing 11 has, as of 25 August 2026, killed at least 227 people, including 17 missing and presumed dead, across at least 68 strikes on 69 vessels. The campaign began in the southern Caribbean and expanded into the eastern Pacific in October 2025, with October recording the deadliest monthly toll at 45 killed; further eastern Pacific strikes have continued into 2026. The Department of Defense has not produced evidence that any interdicted vessel carried narcotics, and the Pentagon inspector general has opened an evaluation of the strikes. Legal critics contend the 'armed conflict' framing against 'narco-terrorists' lacks a valid jus ad bellum basis and that summary lethal force against suspected traffickers constitutes extrajudicial killing; operational critics note that fentanyl reaching the United States moves overland from Mexico rather than by Caribbean go-fast boat, making the campaign's counter-narcotics logic weak. The UN has repeatedly urged restraint. The strikes now function primarily as coercive signalling toward remaining non-aligned governments in the hemisphere rather than as supply interdiction, and they have become the template for the broader Shield of the Americas coalition launched 7 March 2026.

Brazil's presidential race narrows to a coin-flip three weeks before the 4 October first round

Severity: ELEVATED

Brazil votes in the first round on 4 October 2026 with a runoff scheduled for 25 October; the official campaign period closes 3 October. President Lula da Silva, seeking an unprecedented fourth non-consecutive term at 80, faces Senator Flavio Bolsonaro of the Liberal Party, standing in for his father Jair Bolsonaro, who is serving a 27-year sentence for the coup plot against the 2022 result. Lula led every late-August first-round poll, but the latest PoderData/Aya national survey put Flavio Bolsonaro two points ahead, 47-45, in a second-round simulation, his second consecutive runoff lead and the widest of the cycle. Self-help author Augusto Cury has emerged as the campaign's wild card, climbing from 1 percent to as high as 11 percent and threatening to fragment the first round. The 25 percent US tariffs imposed on Brazilian goods, explicitly tied by the Trump administration to the Bolsonaro prosecution, initially strengthened Lula's sovereignty framing, and Flavio Bolsonaro's 6 July appeal to Trump to defer tariffs until after the election underscored the liability; the economic squeeze, however, has since eroded that advantage. A Bolsonaro victory would deliver a fourth consecutive right-ward turn in South America's largest economies after Argentina, Chile, Bolivia and Colombia, and would complete the reversal of the 2022-24 'pink tide.'

Bolivia's Paz government faces compounding fiscal collapse and cocalero defiance of emergency rule

Severity: HIGH

President Rodrigo Paz Pereira, in office since 8 November 2025, is managing the most severe Bolivian economic contraction in decades, with the IMF projecting a 3.3 percent GDP decline in 2026 against nearly exhausted foreign currency reserves, collapsing natural gas output and a fiscal deficit above 10 percent of GDP. Paz declared a state of emergency on 20 June 2026 after weeks of blockades over living costs paralysed food, fuel and medical supply chains, and dismissed his economy minister on 21 August amid continued unrest. Supreme Decree 5676 of 17 August 2026 ended subsidised diesel for large consumers, roughly doubling the price from about USD 0.85 to USD 1.56 per litre, following an earlier decree that more than doubled retail gasoline and diesel prices and reversed twenty years of subsidy policy. YPFB president Sebastian Daroca publicly conceded on 18 August that the hydrocarbons crisis is structural and that the gap between international and domestic prices is beyond the state company's capacity to absorb. On 4 September 2026 thousands of coca growers loyal to Evo Morales marched in central Bolivia in open defiance of the state of exception, protesting fuel shortages and Paz's adjustment programme; a Bolivian court issued an arrest warrant against Morales on 29 July on terrorism and sedition charges linked to the May-June protest wave. Paz is simultaneously pursuing an IMF programme that will require deeper subsidy withdrawal, placing his fragile congressional coalition under acute strain.

Flashpoint Watch

• Catatumbo, Norte de Santander, Colombia (intensity 5/5) — ELN territorial control zone on the Venezuelan border. After the January 2025 offensive that killed more than 80 and displaced 36,000, the region has seen renewed military escalation under De la Espriella, including the first airstrike of his presidency and the 9 September revocation of the ELN negotiating delegation, ending any near-term negotiated de-escalation.
• Southern Caribbean maritime corridor off Venezuela (intensity 5/5) — Operational theatre for Operation Southern Spear. At least 68 lethal strikes on 69 vessels have killed 227 people since 2 September 2025, with US warships, a submarine and roughly 4,000 Marines and sailors deployed offshore and a Pentagon inspector general evaluation now underway into the legality and targeting basis of the campaign.
• Port-au-Prince and Kenscoff, Haiti (intensity 5/5) — Armed gangs hold 80-90 percent of the capital and have pushed into the Kenscoff farming belt, where September 2026 attacks displaced over 2,600 people, kidnapped 50 and killed at least 47. The Gang Suppression Force mandate expires 30 September and the Haitian government formally requested renewal on 4 September.
• Guayaquil and the Ecuadorian Pacific coast (intensity 4/5) — Core of Ecuador's cocaine export infrastructure and the epicentre of transnational gang conflict. The current 60-day state of exception covers Guayas, Manabi, Los Rios, El Oro, Esmeraldas and five other provinces after 879 homicides between 1 May and 12 June 2026, mapping precisely onto the northern-border-to-Pacific trafficking corridor.
• Sinaloa and Culiacan, Mexico (intensity 4/5) — Locus of the intra-Sinaloa Cartel war and the reference point for Rubio's 10 September assertion that vast Mexican territories are governed by narco-terrorist organisations rather than the state. US-provided intelligence enabled the Mexican army's February 2026 operation against a top cartel leader, a precedent Washington now cites when threatening unilateral land strikes.
• Essequibo region and the Guyana-Venezuela frontier (intensity 3/5) — Two-thirds of Guyanese territory claimed by Caracas and overlaying one of the world's fastest-growing offshore oil provinces. ICJ merits hearings concluded 11 May 2026 with judgment expected this year; Venezuelan officials have indicated the ruling will be disregarded, and irregular armed actors and increased troop visibility persist along the border.

Sources

• De la Espriella completes his first month with a full reversal of Petro's diplomacy - MercoPress
• De la Espriella Dismantles What Is Left of Paz Total - Rio Times
• De la Espriella sworn in as Colombia's leader, vows armed group crackdown - Al Jazeera
• Rubio doubles down on claims that cartels control large areas of Mexico, hinting at unilateral US action
• Sheinbaum touts Mexico trade position amid US tariff talks: September 3 mananera
• Venezuela's Post-Maduro Political Transition and U.S. Policy - Congressional Research Service
• U.S. lifts sanctions on Venezuela's acting President Delcy Rodriguez
• What to know about U.S. military strikes on alleged drug boats - NPR
• Pentagon watchdog to evaluate U.S. military's boat strikes in Latin America - PBS News
• Lula holds slim lead over Flavio Bolsonaro ahead of Brazil election - Al Jazeera
• Brazil Poll: Flavio Bolsonaro Widens Runoff Lead Over Lula to 47-45
• Bolivia's President Rodrigo Paz fires economy minister amid unrest - Al Jazeera
• Cocaleros afines a Evo Morales desafian estado de excepcion para protestar contra el gobierno
• Haiti, September 2026 Monthly Forecast - Security Council Report
• Haitian government calls for renewal of international anti-gang task force - Al Jazeera
• Will the UN vote to sustain Haiti's Gang Suppression Force? - Chatham House
• Ecuador's President Noboa imposes new state of emergency across 10 provinces - Anadolu Agency
• Panama Canal new capacity cuts put US ports on notice - FreightWaves
• Keiko Fujimori is inaugurated as Peru's president following a narrow election victory - NPR
• Kast at Six Months: 34 Percent and a Stalled Security Reform
• Milei's economy in 2026: between macroeconomic consolidation and politics - Buenos Aires Herald
• ICJ opens oral hearings as Guyana asks court to affirm century-old boundary with Venezuela - JURIST
• Cuba is going dark under US pressure. How the crisis unfolded - CNN
• The Shape of Dictatorship in Nicaragua: 2026 - Inter-American Dialogue
• Trump ally Asfura sworn in as Honduras president - France 24