Oh

[Woodsprite]

I swear by God this sacred oath that to the Leader of the German empire and people, Adolf Hitler, supreme commander of the armed forces, I shall render unconditional obedience and that as a brave soldier I shall at all times be prepared to give my life for this oath.

--Wehrmacht Oath taken by all German soldiers

I think you misunderstand me when I say all soldiers were, by definition, automatically part of the Nazi party. Many of them were against it, but they had no choice but to obey or die. In other words, you could be a part of the Nazi party and still be anti-Nazi, which is what many of the soldiers were.