Overview

• Decree of Necessity and Urgency 697/2025, signed by President Javier Milei, authorizes the exercises and is already in force following publication in the Boletín Oficial.
• Exercise Solidaridad will run October 6–10 in Puerto Varas, Chile, focused on disaster-response coordination under a 1997 bilateral framework.
• Exercise Tridente is scheduled for October 20–November 15 at Argentina’s naval bases in Mar del Plata, Ushuaia and Puerto Belgrano, with U.S. military personnel authorized to enter the country.
• The government frames the drills as training to strengthen interoperability, standardize procedures and support humanitarian assistance, with costs charged to the Defense Ministry budget.
• Congress must review the DNU in the coming days, and critics argue the decree sidesteps the constitutional requirement for legislative authorization of foreign troop entry; one report says up to 30 U.S. Naval Special Warfare personnel are expected.