What month do  Legion of French Volunteers Against Bolshevism and Philippe Pétain have in common?
Philippe Pétain Henri Philippe Benoni Omer Joseph Pétain (24 April 1856 – 23 July 1951), generally known as Philippe Pétain (] ) or Marshal Pétain ("Maréchal Pétain"), was a French general who reached the distinction of Marshal of France, and later served as the Chief of State of Vichy France also known as Nationalist France or the French State "(Chef de l'État Français)", from 1940 to 1944. Pétain, who was 84 years old in 1940, ranks as France's oldest head of state. Today, he is considered the French equivalent to his contemporary Quisling in Norway. Because of his outstanding military leadership in World War I, particularly during the Battle of Verdun, Pétain was viewed as a national hero in France and was not executed. He was sometimes nicknamed "The Lion of Verdun".
Henri Guilbeaux Henri Guilbeaux (1885–1938) was a French socialist politician. Active in the Zimmerwald Anti-War Movement during World War I. He was a prominent figure of a group of intellectuals who fought in Geneva against the war; friend of Stefan Zweig, whose poems he translated in French. Zweig nonetheless criticizes him in "Die Welt von Gestern," saying that he "was not a gifted person" and that "I must frankly denominate his literary ability as inconsiderable. His command of language was not more than average; his education was not profound. His entire power lay in controversy." He published a magazine, "Demain", that became a point of reference for all who were against the war. Among the other, on those pages wrote Lenin, Trotsky and Lunacharsky. Because of his political credo and his strong personality, he was judged by default in France and sentenced to death. He could escape in Russia, with the help of Lenin. Became a Communist and was active in the Comintern. Supporter of Trotsky. Pardoned by the French justice, he died, almost forgotten, in Paris.