Bonjour Franck
Des pistes pouvant peut-être aider:
Pourquoi lui... une première chose, le candidat devait savoir parler l'anglais.
Puis sans doute son grade n'était pas trop élevé afin de ne pas «gêner»... Il faut ici être au courant des relations franco-américaines... ouf... une phrase par exemple; «Il ne doit pas être d’un grade trop élevé pour ne pas porter ombrage aux officiers américains» extraite ici
http://rha.revues.org/index2363.html ). Bien qu'il y eut de la formation en France pour les Américains, mais certaines unités furent formées aux États-Unis, entre autres, ne serait-ce que d'apprendre le maniement d'armes françaises... etc.
Extrait de The Field Artillery Journal:
http://sill-www.army.mil/firesbulletin/ ... DITION.pdf
« ...
FIELD ARTILLERY BRIGADE FIRING CENTERS
Shortly after assuming office the Chief of Field Artillery noted that the brigades were not being efficiently trained in divisional cantonments. This
condition arose from lack of matériel, lack of sufficient and efficient instructors, and lack of training area. To meet this condition four brigade firing
centers were immediately organized, being located at Camp
Doniphan, Okla.; Camp Jackson, S. C.;
Camp McClellan, Ala.; and Camp Knox, Ky.
Matériel and instruction were concentrated at these camps. Staff schools and schools for all specialists in the brigades were established. Officers returning from abroad,
as well as officers from the foreign mission, were detailed as instructors. It may be truly said that only those brigades which had passed through these firing centers were properly trained and organized upon their departure from this country for France. Fourteen brigades were trained at these centers.
...»
Voir aussi 9th Field Division Artillery Brigade par exemple, en 1918 au camp Mc Clellan:
http://www.history.army.mil/html/books/ ... b_23-4.pdf
Salutations