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 "Ukrainian People's Militia"): There is conclusive historical evidence indicating that members of the Ukrainian Militia took a leading role in the 1941 Lviv pogroms, resulting in the massacre of 6,000 Polish Jews, after the German army reached Lwów (Lemberg) at the end of June in Soviet-occupied eastern Poland (now Lviv, Ukraine).
Relevant evidence: No