The Red Brigades was founded on rigid Marxist-Leninist principles. Marxism-Leninism is a set of communist ideals and political philosophies based on the theories of Karl Marx, Friedrich Engels and Vladimir Lenin, which promote the creation and development of an international communist society. This type of communist society would be governed by the leadership of a vanguard party, which would preside over a revolutionary socialist state (defined as a country’s power being seized of political power through mass movement of the working class community. This radical leftist group advocated violence in the pursuit of class warfare. Concentrated in Italy, the Red Brigades targeted businessmen and politicians and were a notable terrorist threat in Italy during the 1970s and early 1980s. Due to developments during its existence, the Red Brigades took on some qualities of anarchist groups while still proliferating its especially virulent and violent Communist philosophy. In the end, the Red Brigades' increasingly brutal attacks eroded the support of those sympathetic with the group's Communist ideals.
The reputed founder of the Red Brigades was Renato Curcio, who in 1967 set up a leftist study group at the University of Trento dedicated to figures such as Karl Marx, Mao Zedong, Vladimir Lenin and Che Guavara. In 1969 Curcio married a fellow radical,