In 1933 Blobel joined the police force in D黶seldorf. In June 1934 he was recruited into the SD or Sicherheitsdienst; the security service of the SS and the Nazi Party. In June 1941 he became the commanding officer of Sonderkommando 4a of Einsatzgruppe C that was active in the Ukraine. Following Wehrmacht troops into the Ukraine; the Einsatzgruppen would be responsible for liquidating political and racial undesirables.

Blobel; in conjunction with Reichenau's and Friedrich Jeckeln's units; organized the Babi Yar massacre in late September 1941 in Kiev; where 33;771 Jews were murdered. Up to 59;018 killings are attributable to Blobel; though during testimony he was alleged to have killed 10;000-15;000. He was later sentenced to death by the U.S. Nuremberg Military Tribunal in the Einsatzgruppen Trial. He was hanged at Landsberg Prison shortly after midnight on 7 June 1951. Pictures From History