It united supporters of Colorado leader Juan Natalicio González, far-right nationalists, anti-communists and adherents of Falangist and pro-fascist ideas.

It played a prominent role under the dictatorial regime of the 1940s, in the civil war of 1947, the subsequent political struggle and the establishment of Alfredo Stroessner's dictatorship.

[2] These formations were recruited mainly from the rural poor (in the Guaraní language, py nandi means "barefoot ones") who held strongly conservative and anti-communist views.

The Spanish Civil War, with its ideologically driven militias and foreign intervention, prompted the Paraguayan far right to strengthen the paramilitary force.

The structure was more strict, closer to the Colorado branches, with direct subordination to party functionaries and personally to Juan Natalicio González.

[7] At the same time, relying on the "Gionists", González strengthened his own positions, gradually intercepting the levers of real power from Morinigo.

In the spring and summer of 1948, Guión Rojo organized armed uprisings, which resulted in the overthrow of Morinigo and the ascent of González into power.

Among the Guión Rojo's activists and ideologues were Edgar Ynsfrán, who romanticized the violent methods of the militants as "a barbaric struggle for the people's truth",[2] and Juan Manuel Frutos Fleitas, who later became the head of the Paraguayan branch of the World League for Freedom and Democracy anti-communist organization.

[11] Eventually, the group would come to support Paraguayan General Alfredo Stroessner, who was ideologically close to them and launched his own coup in 1954 to seize power for himself.

However, members such as Edgar Ynsfrán Juan Manuel Frutos Fleitas became high ranking government ministers and ideologues of the new dictatorship, which was to last for 35 years.