After a short power struggle with a rival organisation—Gerhard Roßbach's "Schilljugend"—Gruber prevailed and his "Greater German Youth Movement" became the Nazi Party's official youth organisation. In July 1926, it was renamed "Hitler-Jugend, Bund deutscher Arbeiterjugend" ("Hitler Youth, League of German Worker Youth") and, for the first time, it officially became an integral part of the SA. The name "Hitler-Jugend" was taken up on the suggestion of Hans Severus Ziegler. By 1930, the "Hitlerjugend" (HJ) had enlisted over 25,000 boys aged 14 and upward. They also set up a junior branch, the "Deutsches Jungvolk" (DJ), for boys aged 10 to 14. Girls from 10 to 18 were given their own parallel organisation, the League of German Girls (BDM).