French military officer.
In 1900-1911 he was part of an expedition to North Africa. Then in 1916-1918 a member of the General Staff of Marshals Joseph Joffre and Ferdinand Foch. From 1917-1918, as a Lieutenant Colonel, he was part of the French military delegation to Washington, D. C. In the summer of 1918 he promoted the French Army’s policy of racial integration. American military officials were impressed by Réquin’s depiction of the situation in the French Army where whites and blacks served side by side and were cared for in the same hospitals and by the same personnel and had his report “La Course de l’Amérique à la Victoire” published in English as “America’s race to victory” (1919). In 1919 he was a technical counsellor at the Versailles Peace Conference, and later author of “Projet de Traité d’Assistance Mutuelle” (1924). From 1930 he was French Military Representative at the League of Nations, and 1930-1932 Chief of Cabinet of Ministry of War.
In 1938 he became a member of France’s Supreme War Council, then In World War II he was a general, from 2 September 1939 to 6 July 1940 he commanded the 4th French army against the German invasion of France.
In 1941 he retired, and in 1945 became President, Société de la Légion d’Honneur. He published three further works: Combats pour l’Honneur, a study on General Louis Archinard in the Sudan, Archinard et le Soudan (both 1946) and his memoirs D’une guerre à l’autre 1919-1939 (1949).
He died on 2 February 1953 in Paris.
Link to Wikipedia biography