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World risk · Geopolitics and conflict · US trade & foreign policy

US forces join a lethal strike on an armed group inside Colombia

The test Between 28 Oct 2026 and 31 Oct 2027, the US or Colombian government confirms that US military personnel took part in a lethal strike or raid against an armed group on Colombian soil.

Not under way · Confidence: medium · Reviewed 28 Oct 2026 · Scores from 1 to 10

This page answers: What could happen, how it is scored, and who is exposed?

Using this page
  1. Read the two scores: Likelihood and Impact are kept apart.
  2. Check what is happening, each fact with its source.
  3. Use the calendar for the dates to watch.

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Likelihood
6Elevated steady this month
Impact
3Low steady this month
Breadth4
Depth2
Duration3
Hard to substitute4
Canada pointNot added0

Impact is the average of the four parts, rounded, plus one point when Canada is directly hit on two or more channels, up to 10.

Two separate scales from 1 to 10. Strature never multiplies or merges them.

What changed

Dated, newest first

  1. Impact 4 to 3.
  2. US strike killed five on a boat in the eastern Pacific on 27 Oct 2026 [9]
  3. 300+ US and 400+ Colombian troops in Vanguardia del Sur at Tolemaida, 30 Oct-11 Nov 2026; 150 US personnel in 2022 [3]
  4. Bombing in El Tambo, Cauca, on 22 Oct 2026 killed 10 ELN members; the fifth bombing the government has ordered against armed groups [7]
  5. 176 explosive-drone attacks from 1 Jan to 1 Oct 2026; ELN 90 [12]
  6. Council of State on 7 Sep 2026 found no government request for an opinion on joint operations [5]

Why it matters

The US has moved its campaign against armed groups from boats towards land. On 13 Aug 2026 US Defense Secretary Pete Hegseth said designated terrorist groups in allied countries would be legitimate targets, and named Colombia among the allies. President Abelardo de la Espriella, in office since 7 Aug, sought US help for joint operations. On 26 Oct Colombia's defence ministry said more than 300 US troops would train at Tolemaida from 30 Oct to 11 Nov. No US combat role inside Colombia has been confirmed.

Why Likelihood 6 Pushes: Colombia's request for joint operations; 300+ US troops due to train in country from 30 Oct; boat campaign continues; Ecuador model; talks with armed groups ended. Brakes: no Senate leave, no Council of State opinion sought; Colombia has not confirmed; February's joint plan stayed Colombian.

Why Impact 3 Threshold case: one confirmed joint strike or raid.

The other facts on file (6)
  • Hegseth: Colombia, Guatemala and Honduras agreed to joint US operations on their soil; Guatemala denied; Colombia did not comment [1] (17 Aug 2026)
  • Hegseth on 13 Aug: designated terrorist organisations in allied countries are legitimate US targets; Colombia sought joint operations; joined the A3C as 19th member [2] (19 Aug 2026)
  • Article 173: the Senate permits transit of foreign troops [4] (1991)
  • Total Peace talks ended 29 Aug 2026 (low confidence) [6] (29 Aug 2026)
  • Petro-Trump joint action agreed 3 Feb 2026; US troops not involved in the 4 Feb ELN strike [8] (4 Feb 2026)
  • ELN 72-hour armed strike 14-17 Dec 2025 against US intervention threats [10] (12 Dec 2025)

Where it sits

11. US forces join a lethal strike on an armed group inside Colombia: Low impact · possible1 · Low impact · possibleOttawaMexico CityCANADAMEXICOUNITED STATESPACIFIC OCEANATLANTIC OCEANGULF OF MEXICO01000 kmat 40°NMap data: Natural Earth (public domain).
11. US forces join a lethal strike on an armed group inside Colombia: Low impact · possibleWashingtonCANADAMEXICOUNITED STATESGULF OF MEXICO0500 kmat 40°NMap data: Natural Earth (public domain).

How it spreads

If

Between 28 Oct 2026 and 31 Oct 2027, the US or Colombian government confirms that US military personnel took part in a lethal strike or raid against an armed group on Colombian soil.

Not under way

Channels 4 on the card

  1. CanadaNo Canadian channel sourced.
  2. SecurityELN reprisals: armed strikes [10][11] and drone attacks [12].
  3. Law and politicsA strike without Senate leave tests Article 173 [4].
  4. The borderELN presence near Venezuela [8].

Sectors 3

  • Energy and pipelines
  • Mining and metals
  • Ports and logistics

Countries 2

Who is exposed

Countries
Colombia, United States, Venezuela
Sectors
Oil pipelines, Mining and metals, Road freight, Private security, Banks and insurers

Three scenarios and their signposts

  1. S1

    Training only

    US forces train and share intelligence; strikes stay Colombian.

  2. S2

    Joint strike

    A confirmed joint raid or air strike on an ELN or dissident camp.

  3. S3

    Escalation

    Repeated strikes and an ELN armed strike in reply.

The signposts of each scenario
PathSignpost
S1The exercise ends on 11 Nov with no follow-on deployment
S2A Senate vote on foreign-troop transit
S3An ELN decree naming the US

No probability is given for the three paths.

Dates to watch

Calendar

The dates to watch

A dot is a day, a bar a month or a year; a hollow mark is tentative. The line marks today.

  1. 11 Nov 2026 US troops due to leave after the exercise [3] Declared · Outside event

    Remind me

  2. 31 Oct 2027 End of the scored window [3] Declared · Strature date

    Remind me

Sign in, with alerts on, for an email 7 days and 1 day before.

SourceStrature world-risk card; the dates cite the sources below.
Exhibit R-3 · WORLD · strature.net

The other side

Joint action could weaken groups that tax mining and freight and bomb pipelines, cutting security costs for firms in Cauca and Norte de Santander. Closer defence ties also came with a US-Colombia memorandum on critical minerals on 8 Sep (low confidence) [6].

Connected in Strature

Sources

12 sources, numbered as the text cites them

  1. After killing hundreds in boat strikes, US military expands campaign on land in Latin America. The Associated Press (via NBC Washington) · 17 Aug 2026 · News · confidence high · retrieved 28 Oct 2026
  2. Estados Unidos pone al Eln entre sus objetivos y plantea operaciones conjuntas con Colombia. El Tiempo · 19 Aug 2026 · News · confidence medium · retrieved 28 Oct 2026
  3. Más de 300 soldados estadounidenses llegarán a Colombia para entrenamientos antinarco (AFP). France 24 · 26 Oct 2026 · News · confidence high · retrieved 28 Oct 2026
  4. Constitución Política de Colombia, artículo 173 (site not reachable on 28 Oct; Art. 173(4)). Secretaría General del Senado · 1991 · Official · confidence high · retrieved 28 Oct 2026
  5. De la Espriella no ha pedido aval para operaciones militares conjuntas con EE.UU.: Consejo de Estado. Cambio · 2026-09 · News · confidence medium · retrieved 28 Oct 2026
  6. 2026 in Colombia. Wikipedia · Commentary · confidence low · retrieved 28 Oct 2026
  7. Colombia says bombing killed 10 ELN rebels in Cauca. The Rio Times · 25 Oct 2026 · News · confidence medium · retrieved 28 Oct 2026
  8. Strike kills guerrillas as US, Colombia agree to target narco bosses (AFP). France 24 · 4 Feb 2026 · News · confidence high · retrieved 28 Oct 2026
  9. US says it killed five people in strike on alleged drug boat. Al Jazeera · 27 Oct 2026 · News · confidence medium · retrieved 28 Oct 2026
  10. Colombian guerrillas declare nationwide armed strike to protest US aggression. Latin America Reports · 12 Dec 2025 · News · confidence medium · retrieved 28 Oct 2026
  11. Paro armado de ELN deja hasta ahora un muerto y cierres viales. El Espectador · 14 Dec 2025 · News · confidence medium · retrieved 28 Oct 2026
  12. Ataques con drones explosivos marcan récord en Colombia: van 176 en 2026. Infobae · 10 Oct 2026 · News · confidence medium · retrieved 28 Oct 2026

Reviewed 28 Oct 2026 · version 1 · last change: Impact 4 to 3 · All risks