Overview
- An Argentine fighter using the alias Crixus said only two of six team members survived after their assault unit was detected and hit in the Sumy region.
- Those killed were José Adrián Gallardo, 53, Ariel Achor, 25, and Mariano Franco, 47, who had joined Ukrainian forces in mid‑September for their first frontline mission.
- Oleg Grigorov, head of the Sumy regional military administration, said Russian forces launched dozens of drone strikes and guided aerial munitions during the attack.
- One combatant died after stepping on a mine during the withdrawal, a Colombian fighter was also killed, and at least two other Argentines were wounded.
- Argentine outlets report the incident occurred weeks before being disclosed, highlight the volunteers’ contractor status, and note ongoing challenges with casualty counts and repatriation.