# RIM 29 defense anniversary commemorations in Formosa

> Live situation record from CLSTR: https://clstr.news/situations/rim-29-defense-anniversary-commemorations-in-formosa
> Updated: 2026-10-05T17:51:39.000Z. Sources: 6. Developments: 2.

In Formosa, Argentina, officials organized ceremonies to mark the 51st anniversary of the defense of the Regimiento de Infantería de Monte 29 (RIM 29), an event occurring on October 5, 1975, during an attack by the Montoneros armed organization.

Governor Gildo Insfrán led the commemorations, which included activities such as a national flag raising, a field mass, and floral offerings. The events honored the soldiers and police officers who died during the historical attack. Military officials, including Colonel Gustavo Insaurralde, participated in the tributes, describing the defense of the regiment as a “heroic chapter” in the province’s history and a source of inspiration for current military personnel.

## Timeline

### 2026-10-05: Formosa officials honor RIMte 29 defense heroes

Governor Gildo Insfrán led a ceremony in Formosa to honor the fallen soldiers and veterans of the RIMte 29 regiment, commemorating the 51st anniversary of the defense against an attack on October 5, 1975.

4 sources. https://clstr.news/cluster/formosa-officials-honor-rimte-29-defense-heroes

### 2026-10-02: Formosa Governor to lead RIM 29 defense anniversary commemorations

Formosa Governor Gildo Insfrán will lead ceremonies marking the 51st anniversary of the defense of RIM 29, honoring those killed during the 1975 Montoneros attack.

4 sources. https://clstr.news/cluster/gildo-insfrn-to-lead-formosa-commemorations-for-rimte-29-defense

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Cite as: RIM 29 defense anniversary commemorations in Formosa. CLSTR, https://clstr.news/situations/rim-29-defense-anniversary-commemorations-in-formosa