Executive Decree Bypasses Congressional Inaction
Argentina's executive branch has authorized the departure of national military personnel and assets to participate in Exercise Arandú 2026, a combined drill with Brazil set for October 10-17 in the Brazilian city of Rosario do Sul. The authorization appears in Decree 1157/2026, published in the Official Gazette. The government cited the lack of legislative action on the annual combined-exercises bill, which was sent to Congress but has not been addressed by the Chamber of Deputies, as the reason for acting through a decree of necessity and urgency.[S1][S2]
The Constitution assigns Congress the power to approve the entry of foreign troops into Argentina and the exit of national forces. The executive branch justified the decree by pointing to the proximity of the exercise dates and the absence of a parliamentary decision on the broader annual program. The bill, submitted earlier, covers combined exercises scheduled between September 1, 2026, and August 31, 2027, including both inbound foreign contingents and outbound Argentine forces.[S1][S2]
Scope of the Deployment and Participating Units
According to the decree's annex, the Argentine Army plans to mobilize up to 405 personnel, 99 vehicles, and aircraft for the exercise. The operation will involve paratroopers, air assault units, special operations teams, armored troops, and aviation components. The Brazilian side is expected to contribute up to 1,100 personnel and around 200 vehicles. The estimated cost for Argentina is $247,928,911, to be covered by the Army's assigned budget. The national delegation will cross into Brazil by land, primarily through the Paso de los Libres-Uruguaiana international crossing, with Santo Tomé-São Borja as an alternative or complement.[S1]
Argentine units taking part include the Rapid Deployment Force Command, the IV Airborne Brigade, the X Mechanized Brigade, the I Armored Brigade, the Special Operations Forces Group, the Army Aviation Directorate, the Transport Directorate, the General Directorate of Organization and Doctrine, and the General Directorate of Health. Equipment listed in the annex includes 10 Argentine Medium Tanks, eight Stryker 8x8 armored personnel carriers, 21 vehicle transporters, nine buses, and a fleet of trucks, pickups, motorcycles, and support vehicles. The deployment also includes four assault inflatable boats, radio equipment, night vision devices, parachutes, compasses, observation systems, communications devices, and an unmanned aerial vehicle, plus combat tents and a command post tent.[S1]
Army aviation may operate up to five Bell UH-1H/II helicopters, one Bell 407 equipped with a FLIR system, one Casa C-212 Aviocar, two Caravan C-208 aircraft, and one Cessna Citation. The annex identifies these as the main platforms estimated for the exercise. The material list includes individual and support weapons: pistols, rifles, machine guns, rocket launchers, 105mm cannons, and two towed L33 155mm cannons. Authorization also covers the transport of ammunition for various calibers.[S1]
Objectives: Interoperability and Regional Ties
The exercise's central aim is to deepen operational coordination, institutional ties, and confidence between the two armies. The decree states that training will focus on creating shared procedures and techniques for the integrated use of units from both forces, with the goal of raising the coordination capacity of military organizations with different operational profiles. Areas mentioned include airborne forces, airmobile units, special operations teams, armored troops, and aviation components. Participants are expected to learn each other's procedures, coordinate employment methods, and test training and tactical execution methods.[S1][S2]
The government argues that interoperability is relevant so that military units from different countries can act under common guidelines. In this case, training aims for Argentine and Brazilian units to develop a shared framework for planning, communication, and deployment in combined operations. The decree also mentions knowledge exchange, doctrinal updates, and validation of procedures as expected outcomes. These aspects relate to troop readiness and the compatibility of operational capabilities during joint activities. The text further notes that Argentine participation signals a commitment to regional stability and international security, maintaining the Army's reputation as a relevant global actor.[S1][S2]
