Défense de la France was an underground newspaper produced by a group of the French Resistance during World War II. Essentially developed in the Northern Zone, Défense de la France distinguishes itself by an activity centered on the distribution of a clandestine newspaper created in August 1941 by a group of Parisian students, of the Christian faith. Philippe Viannay was the founder of it and the main editor. With a circulation of 450,000 in January 1944, it had the largest circulation of the whole clandestine press.