COBRA (or CoBrA) was a European avant-garde movement active from 1948 to 1951. The name was coined in 1948 by Christian Dotremont from the initials of the members' home cities: Copenhagen (Co), Brussels (Br), Amsterdam (A).
During the time of occupation of World War II, the Netherlands had been disconnected from the art world beyond its borders. COBRA was formed shortly thereafter. This international movement of artists who worked experimentally evolved from the criticisms of Western society and a common desire to break away from existing art movements, including "detested" naturalism and "sterile" abstraction. Experimentation was the symbol of an unfettered freedom, which, according to Constant, was ultimately embodied by children and the expressions of children. COBRA was formed by Karel Appel, Constant, Corneille, Christian Dotremont, Asger Jorn, and Joseph Noiret on 8 November 1948 in the Café Notre-Dame, Paris, with the signing of a manifesto, "La cause était entendue" ("The Case Was Settled"), drawn up by Dotremont. Formed with a unifying doctrine of complete freedom of colour and form, as well as antipathy towards Surrealism, the artists also shared an interest in Marxism as well as modernism.
Their working method was based on spontaneity and experiment, and they drew their inspiration in particular from children’s drawings, from primitive art forms and from the work of Paul Klee and Joan Miró.
Coming together as an amalgamation of the Dutch group Reflex, the Danish group Høst and the Belgian Revolutionary Surrealist Group, the group only lasted a few years but managed to achieve a number of objectives in that time: the periodical Cobra, a series of collaborations between various members called Peintures-Mot and two large-scale exhibitions. The first of these was held at the Stedelijk Museum in Amsterdam, November 1949, the other at the Palais des Beaux-Arts in Liège in 1951.