High Quality Content by WIKIPEDIA articles! Operation Scherhorn (in English sources) or Operation Berezino (original Russian codename), Operation Beresino (in East German sources) was a secret deception operation performed by the NKVD against the Nazi secret services in August 1944 – May 1945. It was proposed by Joseph Stalin, drafted by Mikhail Maklyarsky and executed by Pavel Sudoplatov and his NKVD subordinates assisted by ethnic German antifascists and communists.