In Argentina, the armed forces overthrow the constitutional government of President Isabel Perón and start a seven-year dictatorial period self-styled the National Reorganization Process.

Argentina, officially the Argentine Republic, is a country in the southern half of South America. It covers an area of 2,780,085 km² (1,073,397 sq mi), making it the second-largest country in South America after Brazil, the fourth-largest country in the Americas, and the eighth-largest country in the world. Argentina shares the bulk of the Southern Cone with Chile to the west, and is also bordered by Bolivia and Paraguay to the north, Brazil to the northeast, Uruguay and the South Atlantic Ocean to the east, and the Drake Passage to the south. Argentina is a federal state subdivided into twenty-three provinces, and one autonomous city, which is the federal capital and largest city of the nation, Buenos Aires. The provinces and the capital have their own constitutions, but exist under a federal system. Argentina claims sovereignty over the Falkland Islands, South Georgia and the South Sandwich Islands, the Southern Patagonian Ice Field, and a part of Antarctica.

The Argentine Army is the land force branch of the Armed Forces of the Argentine Republic and the senior military service of Argentina. Under the Argentine Constitution, the president of Argentina is the commander-in-chief of the Armed Forces. Command authority is exercised through the Minister of Defense.

The 1976 Argentine coup d'état was a coup d'état that overthrew Isabel Perón as President of Argentina on 24 March 1976. A military junta was installed to replace her; this was headed by Lieutenant General Jorge Rafael Videla, Admiral Emilio Eduardo Massera, and Brigadier-General Orlando Ramón Agosti. The political process initiated on 24 March 1976 took the official name of "National Reorganization Process", and the junta, although not with its original members, remained in power until the return to the democratic process on 10 December 1983. The coup was planned and executed within the framework of Operation Condor, a clandestine system of coordination between Latin American countries promoted by the United States, as part of the national security doctrine, which installed dictatorships in Latin America in order to maintain U.S. influence in those countries during the Cold War.