[1] He joined the student movement of Action Française in 1919, taking over the editorship of their eponymous paper in 1923, although he severed his ties with the group in 1930.

[1] He worked for the publishing house Fayard and was for a time associated with the historian and rightist Pierre Gaxotte, whilst also spending brief periods as a member of both La Cagoule and Croix-de-Feu before, in 1934, becoming close to Paul Marion and the neosocialists.

[2] His main writing topics were his opposition to democracy and his desire for a rapprochement with Nazi Germany and indeed in 1936 he attended the Nuremberg Rally.

[5] Following the establishment of Vichy France Jeantet served that regime as head of their Foreign Press Service and as editor of Le Petit Parisien, which by then was the mouthpiece of the government.

[3] He fled to Germany in 1944 and attempted to continue publishing Le Petit Parisien, but was soon captured and sent back to France where he was sentenced to hard labour for life for his collaborationism.