 His job here was to process the incoming reports from the Luftwaffe attachés working in the individual embassies.At the same time, Harnack learned from him that the Reich Aviation Ministry was now also involved in the preparation of the Russian campaign and that reconnaissance flights had begun over Soviet territory.On 27 March 1941 in a meeting at the apartment of Arvid Harnack, Schulze-Boysen met the 3rd secretary member of the Soviet embassy, Alexander Korotkow who was known to Harnack as Alexander Erdberg.