In 1919, he edited Le Courrier de Paris, a literary journal for veterans.
On 26 November 1927, he founded the veterans’ association known as Croix-de-Feu.
In addition to his militant activity, he wrote several novels, books on literary criticism and biographies of other writers.
D'Hartoy was also a French representative at the League of Nations and the United Nations.
This article is based on the equivalent article from the French Wikipedia, consulted on June 7, 2008.