 Ramba uchiverenga ndima iyi - Akapinda muSaint Cyr Military Academy muna 1905, mukirasi inozivikanwa sePromotion la Dernière du Vieux Bahut, uye akapedza kudzidza muna 1907. Akatumirwa kuAlgeria uye kumucheto kweSahara, uye muna 1912 kuLunéville. Gore rakatevera, akadanwa kuMorocco naGeneral Hubert Lyautey. Pasinei nokuputika kweHondo Yenyika Yokutanga, La Roque akaramba ari ikoko kusvikira muna 1916 somukuru wezvemabasa omunyika, paakarohwa zvakakomba ndokudzorerwa kuFrance. Munguvayi, mukoma wake mukuru Raymond, mukuru mukuru muuto, akanga aurayiwa muhondo mukati ma 1915. Pasinei neizvi, La Roque akazvipira kurwisana kuWestern Front uye akatumirwa kumakomba eSommekutungamirira battalion. 