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?
Schutzstaffel The Schutzstaffel (SS; also stylized as with Armanen runes; ] ; literally "Protection Squadron") was a major paramilitary organization under Adolf Hitler and the Nazi Party (NSDAP) in Nazi Germany, and later throughout German-occupied Europe during World War II. It began with a small guard unit known as the "Saal-Schutz" (Hall-Protection) made up of NSDAP volunteers to provide security for party meetings in Munich. In 1925, Heinrich Himmler joined the unit, which had by then been reformed and given its final name. Under his direction (1929–45), it grew from a small paramilitary formation to one of the most powerful organizations in Nazi Germany. From 1929 until the regime's collapse in 1945, the SS was the foremost agency of security, surveillance, and terror within Germany and German-occupied Europe.
Battle of Kiev (1941) The First Battle of Kiev was the German name for the operation that resulted in a very large encirclement of Soviet troops in the vicinity of Kiev during World War II. This encirclement is considered the largest encirclement in the history of warfare (by number of troops). The operation ran from 7 August to 26 September 1941 as part of Operation Barbarossa, the Axis invasion of the Soviet Union. In Soviet military history, it is referred to as the Kiev Strategic Defensive Operation, with somewhat different dating of 7 July – 26 September 1941.