"L'Affiche rouge" is a song from the album "Les Chansons d'Aragon" (1961) by Léo Ferré, the affair became known by the name of the "Affiche rouge" ("Red Poster") because the Germans plastered Paris in the spring of 1944 with thousands of red posters denouncing those executed as immigrants and which collection of French movements that fought against the Nazi German occupation of France and against the collaborationist Vichy régime during the Second World War?
L'affiche rouge:  The affair became known by the name of the "Affiche rouge" ("Red Poster") because the Germans plastered Paris in the spring of 1944 with thousands of red posters denouncing those executed as immigrants and Resistants.
i don't know