Provinces of Argentina became provinces in 1951. Misiones did so in 1953, and Formosa, Neuquén, Río Negro, Chubut and Santa Cruz, in 1955. The last national territory, Tierra del Fuego, became the Tierra del Fuego, Antártida e Islas del Atlántico Sur Province in 1990. Argentina is a federation of twenty-three provinces and one autonomous city, Buenos Aires. Provinces are divided for administration purposes into departments and municipalities, except for Buenos Aires Province, which is divided into partidos and "localidades". Buenos Aires City itself is divided into communes ("comuna") and non-official neighbourhoods ("barrios"). Provinces hold all the power that they chose not to delegate
Formosa Expedition Formosa Expedition The Formosa Expedition, or the Taiwan Expedition of 1867 was a punitive expedition launched by the United States against Formosa. The expedition was undertaken in retaliation for the Rover incident, in which the "Rover", an American bark, had been wrecked and its crew massacred by aboriginal Paiwan warriors in March 1867. A United States Navy and Marine company landed in southern Formosa and attempted to advance into the native village. The natives deployed a significant amount of guerrilla warfare, which they ambushed, skirmished, disengaged and retreated repeatedly. Eventually the Marines ceased their pursuit when their commander was killed,