The Reich Commissioner for the Consolidation of German Nationhood (German: Reichskommissar für die Festigung deutschen Volkstums, RKF, RKFDV) was an office in Nazi Germany, which was held by Reichsführer-SS Heinrich Himmler.
[1] Adolf Hitler in his 7 October 1939 order Erlaß des Führers und Reichskanzlers zur Festigung deutschen Volkstums appointed Himmler to carry out the following duties:[2] The commissioner was therefore responsible for the return, repatriation, and settlement of ethnic Germans who lived abroad, into Nazi Germany and German held territories.
[3]