Conversation so far:
What was Prince Bernhard of Lippe-biesterfeld initial response to Nazi Germany?
Prince Bernhard was a member of the Reiter-SS, a mounted unit of the SS and had joined the Nazi party before the war.

Question: What did he do while in the Reiter-SS?
Self-contained rewrite: What did Prince Bernhard of Lippe-Biesterfeld do while in the Reiter-SS?