While working at the
University of Königsberg, he met
Franz Six, the future leader of
Vorkommando Moskau. On Six's advice, Buchardt was recruited by the
Sicherheitsdienst (SD, the SS intelligence service), working under Six's command. He studied the
topography and
economy of the
Soviet Union, and the distribution of Jews who lived there. By the late 1930s, he held a prestigious position at the
Wannsee Institut, the German center for studies of the Soviet Union. By the time of the
invasion of Poland, the 30-year-old Buchardt was an
Obersturmführer and the head of a small group of German-Baltic SS officers deployed to the
Port of Gdynia to loot its archives, museums and libraries. The following year, he was assigned to the Office for the Resettlement of Poles and Jews in
Poznań, where he classified the level of "Germanicness" of various sectors of the Polish population on a scale of 1 to 5. In 1940, Buchardt was promoted to head of the
SD in
Lublin, where he worked under
Odilo Globocnik and began participating directly in
the Holocaust. Buchardt carried out similar work in
Łódź in February 1941, this time reporting directly to the
Reich Security Main Office. On the eve of
Operation Barbarossa (June 1941), Buchardt was recalled and, in order to have "blood experience" rather than merely be a "desk scholar", he was assigned to
Vorkommando Moskau of
Einsatzgruppe B. He served as the liaison officer between
Franz Six and the head of Einsatzgruppe B,
Arthur Nebe. Following the start of the
offensive against Moscow in October 1941, he was promoted to head of
Vorkommando Moskau the following month. When the
Red Army repelled the assault against Moscow, Buchardt was posted back to
Łódź in January 1942, where he continued his work as head of the local SD. From January to September 1942, he supervised the deportation of about 80,000 Jews and
Romanis to
Chełmno extermination camp. In February 1943, Buchardt succeeded as commander of
Einsatzkommando 9 of Einsatzgruppe B. He was in charge of murder actions near
Vitebsk. Buchardt's unit was likely responsible for tens of thousands of victims. Buchardt was awarded the
Iron Cross First Class and the
War Merit Cross. In June 1944, he was promoted to
Obersturmbannführer. Posted to
Berlin, Buchardt now headed Amt III B 2 of the
RSHA, which specialized in racial and ethnic matters. He was under the command of
Otto Ohlendorf, who headed Amt III. From December 1944, Buchardt also headed
Sonderkommando Ost, which gathered intelligence on Russian personnel living in German territory, including members of General
Andrey Vlasov's collaborationist
Russian Liberation Army. ==After the war==