My son has recently discovered the old Warner Brothers WW2 propaganda cartoons, and we started talking about the propaganda on the other side. How did the Nazis justify being allied with Japan? I tried looking for German propaganda on the subject, but couldn't find much.
This question was asked a few times, here are some past answers:
https://www.reddit.com/r/AskHistorians/comments/2j98w2/did_nazi_germany_adapt_its_racial_theory_to/