In Argentina, the Argentine military’s primary responsibilities are territorial defense and protecting the country’s sovereignty; duties also include border security, countering narcotics trafficking, and other internal missions, such as disaster response and infrastructure development; it conducts support operations and has bases in Antarctica to promote an active presence in areas of national territory that are sparsely populated; the military also participates in both bilateral and multinational training exercises and supports UN peacekeeping operations

Argentina participates in the Tripartite Command, an interagency security mechanism created by Argentina, Brazil, and Paraguay to exchange information and combat transnational threats, such as crime and terrorism, in the Tri-Border Area; in addition, Argentina and Chile have a joint peacekeeping force known as the Combined Southern Cross Peacekeeping Force, designed to be made available to the UN; Argentina has Major Non-NATO Ally (MNNA) status with the US, a designation under US law that provides foreign partners with certain benefits in the areas of defense trade and security cooperation

the Army and Navy were both created in 1810 during the Argentine War of Independence, while the Air Force was established in 1945; the military conducted coups d'état in 1930, 1943, 1955, 1962, 1966, and 1976; the 1976 coup, aka the "National Reorganization Process," marked the beginning of the so-called "Dirty War," a period of state-sponsored terrorism that saw the deaths or disappearances of thousands of Argentinians; the defeat in the 1982 Falklands War led to the downfall of the military junta (2025)