Does anyone know if the American tankdestroyer doctrine was based on or influenced by the Belgian use of C47 towed by VUB's and the self-propelled T13's? A certain lieutenant colonel Brown served as an American military observer in Belgium from 1937 to 1940. I haven't read it yet but his findings should be in this article: J.E. Helenreich, “An American Perception of Belgian military preparedness, 1937-1940”, in: Belgisch tijdschrift voor militaire geschiedenis, 19 (1984), 5, pp. 428-430.
Neither of the following articles (just google the name) mention anything about Belgium:
-Seek, Strike, and Destroy: U.S. Army Tank Destroyer Doctrine in World War two by Dr. Christopher R. Gabel
Combat Studies Institute U.S. Army Command and General Staff College
-THE EVOLUTION AND DEMISE OF U.S. TANK DESTROYER DOCTRINE IN THE SECOND WORLD WAR
BRYAN E. DENNY, MAJ, US ARMY B.S., Appalachian State University, Boone, North Carolina, 1990
It seems unlikely to me that the American Army was unaware of the Belgian used of motorised and self-propelled AT-guns yet no one seems to mention them. That's odd.