Tacuara Nationalist Movement

The Movimiento Nacionalista Tacuara (MNT, Tacuara Nationalist Movement) was an Argentine far right fascist movement. While officially established in 1957, its activities started in 1955, and continued through the 1960s, being integrated in Juan Perón's right-wing "Special Formations". Directly inspired by Julio Meinvielle's Catholic pronouncements, Tacuara defended nationalist, Catholic, anti-liberal, anti-communist, antisemitic, and anti-democratic ideas, and had as its first model José Antonio Primo de Rivera's fascist Falange Española. In the years 1960–1966, the movement incorporated neo-Nazi elements.

Its main leaders were Alberto Ezcurra Uriburu, José Luis "Joe" Baxter, Óscar Denovi, and Eduardo Rosa. Various ideologically contradictory movements emerged from this group. After three important splits in the early 1960s, the police cracked down on most factions in March 1964. A year later, the entire MNT was outlawed by then president Arturo Illia of the Radical Civic Union. Composed of young people from right-wing backgrounds, it has been called the "first urban guerrilla group in Argentina".

A tacuara was a rudimentary lance used by gaucho militias (known in Argentina as Montoneras) during the Argentine war of independence. It consisted of a knife blade tied to a stalk of taquara cane. It has been rumored that the organization was secretly run by the son of Adolf Eichmann.