Over his lifetime, he was a propagandist, high-ranking civil servant, newspaper editor, essayist, and founder of political parties.

[1] His father, Jean Fouéré, was a tax official originally from the Côtes-du-Nord, and his mother, Marie Liégard, came from a family of pharmacists and local politicians[2] in Callac.

His father, after being wounded on the battlefield, returned as a decorated war hero in 1919, moving to Paris where he became the personal secretary of Yves Le Trocquer, the newly appointed Minister of Public Works.

[citation needed] During World War II, Fouéré founded and edited the pro-autonomist newspaper La Bretagne, which was published in Brest from 1941 to 1945.

[citation needed] In 1946, he was sentenced to life imprisonment in absentia for collaborationist activities but fled to Wales and later settled in Ireland, taking Irish citizenship in the early 1950s.

[citation needed] Fouéré remained a key figure in Breton nationalism, promoting federalism and advocating for greater autonomy.

[3] He co-founded the Celtic League with fellow Breton Alan Heusaff in 1961 and was involved in multiple Breton nationalist organizations, including the Movement for the Organisation of a Free Brittany (Mouvement pour l'organisation de la Bretagne, MOB) and L'Avenir de la Bretagne.