Kliment Voroshilov

Voroshilov commanded the Soviet forces during the Winter War against Finland. The Red Army suffered heavy casualties and failed to achieve a quick victory. The poor performance exposed the weaknesses of the Soviet military and led to Voroshilov's dismissal as Defense Commissar.

Voroshilov was appointed commander of the Leningrad Military District in 1939. He was responsible for preparing the Soviet forces for the Winter War against Finland. His leadership was marked by poor planning and underestimation of Finnish resistance.

After the disastrous Winter War, Voroshilov was dismissed as People's Commissar for Defense in May 1940. He was replaced by Semyon Timoshenko. Voroshilov retained his political positions but lost direct military command, marking the end of his active military career.

Voroshilov was appointed a member of the State Defense Committee in 1941, the supreme wartime authority. He was also given command of the Northwestern Direction but failed to stop the German advance. He was removed from frontline command and given ceremonial roles for the remainder of the war.