[3] Around this time, he opposed the "social fascism" theory and came to advocate a Popular Front alliance between the Communists and other French socialist parties with whom Doriot sympathized on a number of issues and worried that exclusion would alienate valuable political allies.

[6] Still a member of the Chamber of Deputies, Doriot struck back at the Communists who had renounced him: now bitter towards the Comintern, his views turned to embrace the French nation, evolving into a 'national' socialism—as opposed to the socialism of the Third International.

[7] Doriot and his supporters were vocal advocates of France becoming organized along the lines of Fascist Italy and Nazi Germany and were bitter opponents of Socialist Premier Léon Blum and his Popular Front coalition.

[10] In 1941, he and fellow fascist collaborator Marcel Déat founded the Légion des Volontaires Français (LVF), a French unit of the Wehrmacht.

[10] Doriot fought with the LVF and saw active duty on the Eastern Front when Germany invaded the Soviet Union in June 1941 and was awarded the Iron Cross in 1943.

[13] Doriot's PPF struggled to assume a leadership role within the French expatriate community, basing itself in Mainau and setting up its own radio station, Radio-Patrie, at Bad Mergentheim and publishing its own paper Le Petit Parisien.