R. P. Edmund A. Walsh, le Keywords: United States of America | Diplomacy | Mots clefs: Etats-Unis d’Amérique | Diplomatie | ABSTRACT R.P. Walsh writes in 1939 that the current pessimistic mood prevailing in many quarters probably considers any study of diplomacy as better suited to the antiquarian and the amateur of historical curiosities compared to the student of vital international relations as conducted in August 1939. However, the author continues that the diplomatic attitude of the United States, in the uncerta…