Zone libre
On May 19, he became the representative in Zone libre of the "Bordeaux-Aéronautique" company. but after permanent and then intermittent and clandestine communication with Marcel Bloch during his four year imprisonment, Cambronne is considered "enjuivé" by the Abwehr at the Hotel Majestic and denounced as Gaullist to the Reichsleiter Rosenberg Taskforce. He resigned after the "Bordeaux-Aéronautique" company's dissolution, on May 21, 1947.