 During the Indochina War (1947–54), officers such as Roger Trinquier and Lionel-Max Chassin were inspired by Mao Zedong's strategic doctrine and acquired knowledge of convince the population to support the fight.The officers were initially trained in the "Centre d'instruction et de préparation à la contre-guérilla" (Arzew).Jacques Chaban-Delmas added to that the "Centre d'entraînement à la guerre subversive Jeanne-d'Arc" (Center of Training to Subversive War Jeanne-d'Arc) in Philippeville, Algeria, directed by Colonel Marcel Bigeard.