The United Officers' Group (Spanish: Grupo de Oficiales Unidos) or GOU was a nationalist secret society within the Argentine Army which staged a coup d'état in 1943 to overthrow President Ramón Castillo, thus ending the Infamous Decade and forming a military junta which lasted until 1945.

[1] Arturo Rawson was made President, but was only in office for a few days before the GOU replaced him with Pedro Pablo Ramírez.

The GOU started to operate at some stage in the early 1940s, after Colonel Juan Perón's return to Argentina from Europe in 1941.

However, Perón was concerned that the GOU might merely aim at carrying out a coup d'état, without planning in advance the social changes they intended to implement.

Felipe Pigna suggests that GOU members were nationalist sympathisers of Nazi Germany and Fascist Italy,[6] but Noberto Galasso argues that there is no conclusive evidence for that in documents, reports or confirmed events.