 Schulze-Boysen had invited Schumacher to a discussion.This was beginning of the intellectual discussion group that would move the conversations from evenings in Berlin cafés into a more meaningful intellectual discussions, that would later change to a direct-action, anti-facist resistance group.In May 1933, his father organized a pilot training place for him at the German Aviation School in Warnemünde as a "sea observer", in order to get his son out of the political front line in Berlin.