From The Atlantic:
Former generals who have worked for Trump say that the sole military virtue he prizes is obedience. As his presidency drew to a close, and in the years since, he has become more and more interested in the advantages of dictatorship, and the absolute control over the military that he believes it would deliver. “I need the kind of generals that Hitler had,” Trump said in a private conversation in the White House, according to two people who heard him say this. “People who were totally loyal to him, that follow orders.”
Of course Trump's spokesface, Alex Pfeiffer, denies this ever happened.
You'll note, however, that what Trump was interested in was (total) loyalty in his generals. That was the important part - not that they had to be Nazis or whatever.
The fact that at least some of Hitler's generals were, in fact, Nazis (and I have no idea how many of them were) did not invalidate Trump's admiration for them. Or desire to replicate the total loyalty scenario he so obviously desired.
The man is a fascist.