Franz Halder
Blumentritt's command was part of Army Group Center, which suffered massive casualties and the 4th Army itself only narrowly escaped envelopment and annihilation by the Russians outside Moscow. After the ultimate failure of Operation Barbarossa in January 1942, Blumentritt returned to Germany as Chief Quartermaster of the OKH. Late in the year he personally recommended to his superiors that the Germans should withdraw from Stalingrad, receiving the support of Chief of Staff OKH—General Franz Halder—in this recommendation, but the idea of any withdrawal was rejected by Hitler.