When did the double agent who was recruited by Arnold Deutsch defect to the Soviet Union ?
Arnold Deutsch Arnold Deutsch (1903–1942?), variously described as Austrian, Czech or Hungarian, was an academic who worked as a Soviet spy, best known for having recruited Kim Philby. Much of his life remains unknown or disputed.
Abdurrahman Fatalibeyli Abdurrahman Fatalibeyli (birth surname Dudanginski, (Russian: Абдулрахман Фаталибейли-Дудангинский , Azerbaijani: "Ədrürrəhman bəy Fətəlibəyli-Düdənginski" ) or Abo Alioglu Fatalibeyli-Dudanginsky Або Алиевич Дудангинский / "Əbo Əliyeviç Düdənginski"), born Abo Dudanginski (June 12, 1908, Dudanga – November 1954, Munich) was a Soviet army major who defected to the German forces during World War II.