Question: What year did Heinrich Himmler join the unit that used the concept of Wehrbauer to refer to soldiers designated as settlers for the lands conquered during the German invasions of the Soviet Union and Poland?
Sentence (from "List of Ambassadors of Poland to Russia"): The first ambassador in the modern meaning of this word, from Poland to Russia, was Antoni Augustyn Deboli, in late 18th century.
Relevant evidence: No