In 1941, Reinhardt and XLI Panzer Corps were deployed on the Eastern Front for Operation Barbarossa, the invasion of the Soviet Union in June. In late June Reinhardt's Corps defeated the Soviet 3rd Mechanised & 12th Mechanised Corps in the Battle of Raseiniai and destroyed over 700 Soviet tanks. His force led the advance of Army Group North to the outskirts of Leningrad in October. As all German corps on the Eastern Front, Reinhardt's corps implemented the criminal Commissar Order. According to reports from subordinate units, the order was carried out on a widespread basis. On October 5 Reinhardt was given command of the 3rd Panzer Army in Army Group Centre and took part in Operation Typhoon, the advance towards Moscow. After the German defeat in the Battle of Moscow, his army was driven back by Soviet counter-attack during the winter of 1941−42. Troops under Reinhardt's command implemented the OKH policy of "liquidating" mentally infirm; in December 1941 they murdered ten mental patients in the Russian city of Kalinin, on the pretext that they posed a security threat.
Security warfare
From early 1942 until June 1944, the 3rd Panzer Army operated around Vitebsk and Smolensk. In the course of rear-security operations in the area, troops under Reinhardt command destroyed entire communities. A report of February 1943 stated:
In order to keep bands from resettling in this territory, the population of villages and farms in this area were killed without exception to the last baby. All homes were burned down.
The army engaged in deportations of civilians to concentration camps. Between September and December 1943, nearly 4,000 civilians were deported from Vitebsk and surrounding areas, because they were suspected of helping "bands". The action was conducted in cooperation with units of the SD; civilians, including women and children, were deported to Auschwitz concentration camp, where they died from starvation and maltreatment or were later gassed. In June 1944, during Operation Bagration, the Third Panzer and the rest of Army Group Centre were shattered by the Red Army and driven back into Poland and East Prussia. On 16 August 1944, Reinhardt was given command of Army Group Centre. In December, renewed Soviet attacks drove Army Group Centre out of Poland into northern Prussia. Reinhardt was retired from active duty in January 1945.
Trial and conviction
In June 1945, Reinhardt was captured by the Special Air Service. In 1948, he was tried in the High Command Trial, as part of the Subsequent Nuremberg Trials. Reinhardt was found guilty of war crimes and crimes against humanity, including murder and mis-treatment of Soviet prisoners of war, and of murder, deportation, and hostage-taking of civilians in occupied countries. He was sentenced to 15 years imprisonment, and served time in the Landsberg Prison. His sentence was reviewed in January 1951, with no changes. Reinhardt was released in 1952 on compassionate grounds. From 1954. Reinhardt served as president of the Gesellschaft für Wehrkunde, present-day . He was awarded the Order of Merit of the Federal Republic of Germany in 1962.
