Dear CatoRenasci,
"Teachers whose duty was to the legitimate Norwegian government had no duty to the Nazis or their lackeys."
What duty did German teachers owe to the Nazi government of Germany?
What duty did German soldiers owe to their superiors who ordered them to commit war crimes and atrocities?
An intrinsically evil law is not truly law.
If that is not so, then we owe an apology to those Germans who defended themselves by accurately claiming that they were only following orders.
sitetest
To begin with, the Nazi government did achieve initial power legitimately in 1933. At that point, duties to the NSDAP led government were no different than those to to the preceeding government. It was over a period of years and with sometimes little by little steps that ordinary Germans became enmeshed in the regime and the regime became illegitimate. The point at which any individual's duty to the German state was abrogated by the illegitimacy of the states demands and/or orders of an individual's superior is hardly crystal clear, and is probably different for different people in different situations. Having studied this period at great length, I don't think there's much better an answer in brief.