photojournalist for Marianne Magazine; for convenience, he uses Müller's byline. His reports deal mainly with social issues, but he also returns to fashion: at the Maggy Rouff fashion house, he makes a report with the actress Alice Cocea, entitled History of a Dress. He is drafted into the army, in the Fifth Infantry Régiment, and becomes an army photographer under the command of Colonel Jean de Lattre de Tassigny. Marries Mado Ferrand. 1940 : 4 June, captured by the German forces in the Battle of Dunkirk. Prisoner of war in Hohenstein, East Prussia. Begins to paint during his captivity. Serves as spokesman for the French Resistance in the prison camp. He and some of his fellows found an underground communist party. 1941 : 2 February, arrested by the Gestapo for Resistance activities in the camp. Escapes in September. He reaches Vichy France, works for Union Electric on the construction of a hydroelectric station in Fond de France. Joins the underground army of the French Résistance in Grenoble, is in charge of resupplying camps in the mountains. He joins the Maquis du Vercors, the groups of resistants. Takes the Résistance name of Lucien Hervé. He paints and takes part in the exhibitions of the Salon d'Automne in Paris. 1943 : Reinstated into the underground French Communist Party. In December, called to Paris to direct the secret activity of the Mouvement national des prisonniers de guerre et des déportés (MNPGD), an organization to help the prisoners of war and the deported people. He produces and distributes leaflets, and goes into hiding. 1945 : Works in the direction of the MNPGD, along with François Mitterrand. Assistant of the president of the French Red Cross and then general-secretary of the French Aid Organisation for Soviet POWs and Deportees. Meets the Chinese government leader Deng Xiaoping, whose portrait he draws at the Founding Congress of the World Fédération of Trade Unions. Divorces Mado Ferrand. He resumes painting. 1946 : In February, sent by Georges Bidault, président of France's provisional government, on a consular mission to Budapest. Stays for three months. 1947 : In January he is expelled for a second time from the French Communist Party. Works occasionally as an interior decorator and a designer of theatre scenery and film posters. He continues to paint and exhibit, and resumes his writing and photography work for magazines such as France Illustration, Point de vue, Regards, Lilliput.