[6] While looking for the command centre of the Mouvements unis de la Résistance in Puy-de-Dôme on 11 December 1943, the Sicherheitsdienst launched an offensive at Saint Maurice.
Coulaudon, Antoine Llorca ("Laurent") and the main local Resistance members fled, but the next day the Sicherheitsdienst found a briefcase containing important documents, which it had not been possible to dispose of.
The next day, at Billom, Gaspard and his comrades ("Laurent", Robert "Prince" Huguet, Max "Bénevol" Menut, Camille "Buron" Leclanché), narrowly evaded a search party led by Hugo Geissler, comprising 2,000 soldiers from the 66th Army Reserve Corps.
[7] On 15 April 1944 at Montluçon, Coulaudon met Maurice Southgate, an SOE agent known as Major Philippe, head of the Hector-Stationer Resistance network.
[11] In spring 1944, Coulaudon became head of the Forces françaises de l'intérieur in the Clermont region, comprising four départements: Puy-de-Dôme, Haute-Loire, Cantal and Allier.
As a member of the Regional Liberation Committee, he took part on 2 May in the General Meeting of the Auverge Resistance, chaired by Henry Ingrand at Boitout farm, a few kilometres from Paulhaguet.
[12] Coulaudon was put in charge of the military division, and he set up headquarters at the forest rangers' house at Mont Mouchet, after sending out an order for mobilisation on 20 May.
[1] Two years after his death, one of the organisations he had helped to found, the Comité d'Union de la Résistance d'Auvergne, opened a Museum of the Resistance adjacent to the site of his wartime headquarters at Mont Mouchet.