ARA San Juan

The ARA San Juan was an Argentine submarine that sank in the South Atlantic in November 2017 with 44 crew members onboard. Despite extensive searches, it was lost, and its disappearance prompted a large international rescue effort. After over a year of investigation, debris was found indicating the submarine likely imploded underwater, leading to the tragic loss of life. The incident highlighted the importance of submarine safety and the risks faced by underwater military vessels operating in challenging conditions.