Until 1942, when Franco ignored Don Javier's proposal of forming a Carlist-Francoist government, Valiente seemed to hope for a compromise. In 1939 he co-signed "Manifestación de los Ideales", a documented addressed to Franco which urged implementation of Traditionalist features; in 1943 he co-signed another one, "Reclamación de Poder", this time explicitly referring to instauration of the traditionalist monarchy. In 1945 he attended a grand Carlist anti-Francoist demonstration in Pamplona and delivered an address from the balcony; afterwards he was detained by security and expected facing the firing squad; eventually the sanctions adopted were relatively mild, especially compared to the terror employed against the Left. As one of the key mid-age Carlist followers of Don Javier and his Jefe Delegado Fal Conde, Valiente was courted by Conde Rodezno. The latter invited him to join the "juanistas", the group notionally loyal to the regency, but pressing the candidacy of Don Juan, the Alfonsist claimant, as the prospective Carlist king. Valiente refused to adhere.