After Adolf Hitler seized political power in Germany in early 1933, he began to transform many areas of daily life. Within a few years, practically every normal activity in life had been in some way impacted by the Nazi government. The German people were being re-programmed to allow Hitler to have total control.
Among the many organizations targeted was the Boy Scouts. By the mid-1930's, all traces of the Scouting organization had disappeared. Why? The Nazis would not tolerate the Scouts; the reasons for this are several.
First, Scouting is an international organization. Every year, Scouts from many different nations gather at large festivals: Poland, Hungary, Sweden, Denmark, Norway, Belgium, France, Holland, Luxembourg, Finland, etc. Scouts observe a total equality between nations, and cooperate in their wilderness adventures as partners. Hitler would not allow an organization which would teach young people to form constructive plans with people from other countries; the Nazis could not tolerate a spiritual of peaceful cooperation.
Second, the Scouts take an oath to "help other people at all times," the laws of Scouting state that an individual should strive to be "kind, courteous, friendly, helpful, and cheerful." But Hitler wanted young people to be aggressive, hostile, and violent.
Finally, the Scouts promise to do their "duty to God" and be "reverent." But the Nazis wanted to remove all forms of faith and religion from German society, making the Nazi Party and Adolf Hitler into the highest authorities. The Nazis knew that any form of faith in God would undermine the total control of their party, and would undermine the hatred and oppression which Hitler wanted to spread through the nation.
In order for Hitler to eventually plan the Holocaust and launch brutal wars against most of the neighboring countries, he first had to reshape the beliefs of the German people, and that meant getting rid of the Scouts.