On this day in 1941, Operation Reinhard, the code name for the German plan to murder all two million Jews living in the German General Government, commenced. As part of the Operation, three killing centers were constructed in Belzec, Sobibor, and Treblinka.The Operation was named after SS General Reinhard Heydrich, who died in 1942 from injuries he sustained during an assassination attempt. However, his work was vital to the Nazis’ solution to ‘the Jewish Problem’. Reinhard served as Chief of the Reich Security Main Office and drafted the plans to carry out the Final Solution. As part of the plan, two departments were created: the Deportation Coordination Team, which arranged for personnel and transport for the planned deportations, and the Inspectorate of SS Special Detachments, which oversaw the construction and management of the Operation Reinhard killing centers.The majority of German camp personnel in Operation Reinhard came from the Aktion T4 euthanasia program, where pure, bottled carbon-monoxide gas was used as a killing method. The majority of murders were done with this gas and all three killing centers used carbon monoxide in the gas chambers.SS General Globocnik submitted the Operation Reinhard report to Reichsführer SS Heinrich Himmler in January 1944 with four goals: To resettle the Jews of the General Government, exploit the skilled, manual laborers before killing them, secure the personal property of the Jews, and to identify and secure hidden and immovable assets.In total, 1.7 million Jews were murdered in Operation Reinhard. At Belzec, at least 434,508 Jews were murdered, mainly those who were victims of the ghettos in Southern Poland. At Sobibor, at least 167,000 Jews were murdered, mainly those who were victims from Lublin areas and ghettos in the Eastern General Government. At Treblinka, about 925,000 Jews were murdered, mainly those who were victims from central Poland, namely the Warsaw Ghetto.Belzec was liquidated in the summer of 1943 and Sobibor and Treblinka were liquidated in the fall of 1943 following prisoner uprisings. Himmler then ordered the collective murder of the remaining Jewish prisoners engaged in forced labor in the Lublin District. This led to Operation Harvest Festival in November 1943, which claimed the lives of 42,000 Jews and also brought Operation Reinhard to a close.