Thus ended the veteran ambassador’s diplomatic career. Returning to Germany and forced to retire, he joined the opposition circle led by General Beck, Goerdeler, Hassell and others and for a time was marked to become Foreign Minister of an anti-Hitler regime. Hassell reported Schulenburg in 1943 as being willing to cross the Russian lines in order to talk with Stalin about a negotiated peace with an anti-Nazi government in Germany. (The Von Hassell Diaries, pp. 321–22.) Schulenburg was arrested and imprisoned after the July 1944 plot against Hitler and executed by the Gestapo on November 10.