He was a diplomat and was with German foreign service.. he did not join Nazi party. Although his seniors desired.He became a spy and shared very important information with America. He was determined to ensure Nazi defeat. CIA of America was much impressed with him and counted him as the best spy. After the war he tried to settle in USA but could not get suitable job. He returned to Germany where he settled down. However the the people treated him as a leper due to his betrayal of the country acting as a spy.