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ARA San Juan Trial: Prosecution Seeks Up to 5 Years for Navy Officers

23/06/2026 21:51 - Judiciales

A Long-Awaited Trial Reaches Its Final Stage

In a courtroom in Comodoro Rivadavia, a city in Argentine Patagonia, the prosecution has begun presenting its closing arguments in one of the most significant military trials in the country's recent history. The prosecutors are requesting prison sentences of up to 5 years for four former high-ranking officers of the Argentine Navy (Armada Argentina).

The officers are accused of negligence leading to the tragic loss of the ARA San Juan (S-42), a TR-1700 class submarine that disappeared on November 15, 2017, in the South Atlantic Ocean. The vessel was carrying 44 crew members, none of whom survived.

The Four Defendants
  • Luis Enrique López Mazzeo
    Former Commander of Naval Operations (COAA)
  • Claudio Javier Villamide
    Former Commander of the Fleet (COFS)
  • Hugo Correa
    Former Commander of the Submarine Command (CENCOMSUB)
  • Héctor Aníbal Alonso
    Former Chief of Staff (COFS)
Timeline of the Tragedy
Oct 25, 2017Submarine departs Mar del Plata with known issues
Nov 15, 2017Implosion occurs at 10:51 AM
Nov 17, 2018Wreck located at 907 meters deep
Jun 23, 2026Prosecution begins closing arguments

The Negligence Allegations

The prosecution argues that the submarine left the Mar del Plata Naval Base on October 25, 2017, despite serious technical deficiencies that were known to the command. The vessel had gone over 26 months without dry-dock maintenance, a critical failure for any submarine.

According to the indictment, the four defendants held positions of authority that required them to ensure the safety of the vessel and its crew. Their decision to authorize the mission despite the known risks directly led to the catastrophic implosion on November 15, 2017, at 10:51 local time.

What Is a Submarine Implosion?

An implosion occurs when external pressure exceeds the structural integrity of a vessel, causing it to collapse violently inward. At 907 meters deep, the water pressure is approximately 90 times greater than at the surface. The ARA San Juan's hull could not withstand this force, resulting in instantaneous destruction that gave the crew no chance of survival.

The 44 sailors of the ARA San Juan will forever be remembered in Argentine history. This trial represents a crucial step toward truth, accountability, and justice for their families.

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Alfredo's Column Alfredo S. Quiroga

Alfredo S. Quiroga