The Indoctrination of Children in Nazi Germany – In 1936, membership in Nazi youth groups became mandatory for all boys and girls between the ages of ten and seventeen. After-school meetings and weekend camping trips sponsored by the Hitler Youth and the League of German Girls trained children to become faithful to the Nazi Party and the future leaders of the National Socialist state. By September 1939, over 765,000 young people served in leadership roles in Nazi youth organizations which prepared them for such roles in the military and the German occupation bureaucracy.