Upon the Wehrmacht's entry into the Sudetenland, on 1 October 1938 Henlein was appointed "Reichskommissar" and "Gauleiter" for Reichsgau Sudetenland and became a SS-"Gruppenführer" (later an SS-"Obergruppenführer"). The SdP merged with Hitler's NSDAP on 5 November 1938. Henlein was responsible for organizing "Kristallnacht" pogrom in the Sudetenland on 9 November 1938, having local activists smash Jewish homes and businesses. For the next year, Henlein was deeply involved in campaign for the "de-Jewification" of the Sudeten economy, confiscating businesses and properties owned by Jews, and he himself confiscated a villa in Reichenberg (modern Liberec, Czech Republic) that belonged to a Jewish businessman, which remained his home until 1945. Henlein was elected to the "Reichstag" as a deputy in December of 1938 and formally joined the Nazi Party on 26 January 1939.