 America exported far more raw material to Japan than to China in the years 1937–1940.According to the United States Congress, the U.S.'s third largest export destination was Japan until 1940 when France overtook it due to France being at war too.Japan's military machine acquired all the war materials, automotive equipment, steel, scrap iron, copper, oil, that it wanted from the United States in 1937-1940 and was allowed to purchase aerial bombs, aircraft equipment, and aircraft from America up to the summer of 1938.