In 1935, as the concentration camp system within Germany expanded, groups of camps were organized into Wachsturmbanne (battalions) under the office of the Inspector of Concentration Camps who answered directly to the SS headquarters office and Heinrich Himmler. When the SS-Totenkopfverbände were formally established in March 1936, the group was organized into six Wachtruppen situated at each of Germany's major concentration camps. In April 1936, Eicke was named commander of the SS-Totenkopfverbände and the number of men under his command increased from 2,876 to 3,222; the Concentration Camps Inspectorate (CCI) was also provided official funding through the Reich's budget office, and Eicke was allowed to recruit future troops from the Hitler Youth based on regional needs.[18] In 1937, the Wachsturmbanne were in turn organized into three main SS-Totenkopfstandarten (regiments).