text: The group (also called CASSIA or Maier-Messner group - opposite the OSS, the resistance group called itself the Austrian Committee of Liberation - the Americans codenamed Arcel using the acronym ACL) took care, among other things, of collecting and passing on information about locations, employees and productions about Nazi armaments factories to the Allies. This information for targeted bombing by the Allies was partly passed on to middlemen in Switzerland to the British and Americans. Heinrich Maier stated, in the interrogation of the group's strategy on 27 April 1944, that he had hoped to prevent further air strikes on Austrian cities by providing information about the "armaments factories in the Ostmark" and "that this would prevent the other industries that we had after the war absolutely needed, and the civilian population was spared. (...) Shortly thereafter I familiarized Dr. Messner with my plan and talked to him about which armament centers we wanted to reveal to the enemy powers' (- such as Steyr, Wiener Neudorf and Wiener Neustadt) eye." Via Walter Caldonazzi, the group had contacts with Italian resistance groups through Italian construction workers.
  The exact drawings of the V-2 rocket, the production of the Tiger tank and Messerschmitt Bf 109 and others could be passed on via Maier's relationship with the Vienna city commander Heinrich "Rico" Stümpfl. Lieutenant General Stümpfl, former officer of the Austro-Hungarian Army and Austrian Army, knew about the activities of the resistance group and was always ready to help them comprehensively. As a result, precise location sketches and production figures for steel mills, weapon, ball bearing, about the German production situation for synthetic rubber (Buna) and aircraft factories soon reached Allied general staffs. Maier's saying, based on Shakespeare's Richard III, "A kingdom for a ball bearing" has come down to us in this regard. Via Walter Caldonazzi there were contacts to numerous armaments factories in Tyrol such as the Heinkel factories in Jenbach, where drive components for the Messerschmitt Me 163 Komet and V-2 rockets were manufactured. The information about the aircraft factory in Wiener Neustadt, the most important and largest German factory for the production of fighter aircraft at the time, was particularly important.