Why would he? He was very open about his plans..and that was to take Russia. He didnt even want to fight England.
This is from Mein Kampf 1 and 2
"HITLERS OPINON OF THE United States:
In Mein Kampf, Hitler rarely mentioned the United States and when he did, it was in a tone of deep contempt. In Mein Kampf, Hitler portrayed the United States as a "racially degenerate" society on its way to self-destruction. By contrast, in Zweites Buch, Hitler portrayed the U.S. as a dynamic, "racially successful" society that practiced eugenics and segregation and followed what Hitler considered to be a wise policy of excluding "racially degenerate" immigration from eastern and southern Europe. What promoted the change in Hitler's views between 1924 and 1928 is not known. By 1928, Hitler seems to have heard about the U.S.' massive industrial wealth, the Immigration Act of 1924, segregation, and the fact that several American states had eugenics boards to sterilize people who were considered mentally defective, and was favorably impressed. Hitler proclaimed his admiration for these sorts of policies and expressed his wish that Germany would do similar things, albeit on a much greater scale.