In July–September 1941, Budyonny was Commander-in-Chief (главком,
glavkom) of the Soviet armed forces of the Southwestern Direction (
Southwestern and
Southern Fronts) facing the
German invasion of
Ukraine. This invasion began as part of Germany's
Operation Barbarossa which was launched on June 22. He also served as an original member of the
Stavka of the Supreme High Command, the highest Soviet body of military command during the
Great Patriotic War, from the start of the war until February 17, 1945. Operating under strict orders from Stalin (who attempted to
micromanage the war in the early stages) not to retreat under any circumstances, Budyonny's forces were eventually surrounded during the
Battle of Uman and the
Battle of Kiev by Nazi forces. The disasters which followed the encirclement cost the Soviet Union 1.5 million men killed or taken prisoner. This was the largest encirclement in military history. On 13 September 1941, Stalin sacked Budyonny as a
scapegoat, replacing him with
Semyon Timoshenko. He was never allowed to command troops in combat again. First he was put in charge of the
Reserve Front (September–October 1941), then made Commander-in-Chief of the troops in the North Caucasus Direction (April–May, 1942), Commander of the
North Caucasus Front (May–August, 1942) - but was removed from this post as the Germans approached, and appointed Cavalry Inspector of the Red Army (from 1943), as well as various honorific posts. Despite his bravery as a cavalry commander, the view of his fellow officers was that Budyonny was demonstrably incompetent at commanding an army in a mechanized war. Soon after the war, Marshal
Konev told the Yugoslav communist,
Milovan Đilas: "Budyonny never knew much, and he never studied anything. He showed himself to be completely incompetent and permitted awful mistakes to be made." German Field Marshal
Rundstedt, commander of
Army Group South in the battles of Kiev and Uman, said after the war: "Of Budyonny, who commanded the armies facing me, a captured Russian officer aptly remarked — ‘He is a man with a very large moustache, but a very small brain.’" Because of his exceptional Civil War record and public popularity, he continued to enjoy Stalin's patronage and suffered no real punishment for the disaster in Kiev. ==Post-war career==