Title: Allied leaders of World War II
Content: Joseph Stalin was General Secretary of the Communist Party of the Soviet Union during World War II. From 1941 onwards, he was also Chairman of the Committee of the People's Comissars (Premier) of the Soviet Union. It was during Stalin's reign that the USSR emerged as a superpower that rivaled the United States. As the supreme commander of the Red Army, Stalin led the Red Army to liberate the Soviet Union from Nazi occupation. After the war Stalin put communist leaders in power in Eastern Europe, setting up the Eastern Bloc and leading to the Cold War. ; Kliment Voroshilov was the leader of the Soviet Army during 
Title: Leaders of the Vietnam War
Content: Nikita Khrushchev was the First Secretary of the Communist Party and the leader of the Soviet Union from 1953 to 1964. He was the leader of USSR when JFK was U.S. president. ; Leonid Brezhnev was the General Secretary of the Communist Party and the leader of the Soviet Union from 1964 until his death in 1982. He was the leader of the USSR when Lyndon B. Johnson was U.S. president. ; Rodion Malinovsky was the Marshal of the Soviet Union and Minister of Defense of the Soviet Union in 1957–1967. ; Andrei Grechko was the Marshal of the Soviet Union Minister of Defense of the Soviet Union in 1967–1976. ; Anatoliy Hiuppinen was the commander of the Soviet forces stationed in Vietnam. 
Title: Outline of World War II
Content: Joseph Stalin - Leader of the Soviet Union during the War, commander-in-chief of the Red Army ; Winston Churchill - Prime Minister of the United Kingdom ; Franklin D. Roosevelt - President of the United States of America during the Second World War 
Title: Allied leaders of World War II
Content:  of State, he remained mostly in the background, while Stalin was the undisputed war leader with supreme authority over the Soviet Union. A Communist Party elder, Kalinin was a key member of Stalin's inner circle of power until his death. He signed the order authorizing the Katyn massacre. ; Vasily Chuikov commanded the 64th Army and later the 62nd Army, which defended Stalingrad during the crucial Battle of Stalingrad. ; Leonid Govorov became Soviet commander in Leningrad in 1942, and commanded Leningrad's forces in Operation Spark. In 1944, he was promoted to Marshal of the Soviet Union. ; Ivan Konev was commander of the 19th Army during 
Title: Allied leaders of World War II
Content:  ; Georgy Zhukov was a Soviet Field Marshal who led the Red Army to liberate the Soviet Union from Nazi occupation. He also led the Soviets to overrun much of Eastern Europe and to conquer and capture Germany's capital, Berlin. After the war Zhukov was the supreme Military Commander of the Soviet Occupation Zone in Germany. ; Nikolay Gerasimovich Kuznetsov was Admiral of the Soviet Navy, which was primarily responsible for keeping the Nazis out of the Black Sea and the Caucasus. Despite orders to the contrary, he placed his navy on high alert hours before the commencement of Operation Barbarossa resulting in the Navy being the only 
Title: List of leaders of the Soviet Union
Content:  influential party figures: Grigory Zinoviev, Joseph Stalin and Lev Kamenev. Stalin continued to increase his influence in the party, and by the end of the 1920s he became the sole dictator of the USSR, defeating all his political opponents. The post of general secretary of the party, which was held by Stalin, became the most important post in the Soviet hierarchy. Stalin's early policies pushed for rapid industrialisation, nationalisation of private industry and the collectivisation of private plots created under Lenin's New Economic Policy. As leader of the Politburo, Stalin consolidated near-absolute power by 1938 after the Great Purge, a series of campaigns of political murder, repression and persecution. Nazi 
Title: Vasily Sokolovsky
Content:  Vasily Danilovich Sokolovsky (Васи́лий Дани́лович Соколо́вский; July 21, 1897 – May 10, 1968) was a Soviet general and Marshal of the Soviet Union who led Red Army forces on the Eastern Front during World War II. As Georgy Zhukov's chief of staff, Sokolovsky helped plan and execute the Battle of Berlin.
Title: Hero of the Mongolian People's Republic
Content: Joseph Stalin - Leader of the Soviet Union ; Kliment Voroshilov - Chairman of the Supreme Soviet of the USSR ; Gherman Titov - Soviet Cosmonaut ; Andriyan Nikolayev - Soviet Cosmonaut ; Pavel Belyayev - Soviet Cosmonaut ; Georgy Zhukov - Marshal of the Soviet Union ; Ivan Konev - Marshal of the Soviet Union ; Issa Pliyev - General of the Army (Soviet Union) ; Leonid Brezhnev - General Secretary of the Communist Party of the Soviet Union ; Alexei Kosygin - Prime Minister of the Soviet Union ; Dmitry Ustinov - Minister of Defense of the Soviet Union 
Title: Allied leaders of World War II
Content:  early days of the Nazi invasion. He led the Red Army on the Eastern Front and liberated much of Eastern Europe. He helped in the capture of Berlin. ; Kirill Meretskov commanded the 7th Army during the Winter War. He was responsible for breaking the Mannerheim Line. ; Ivan Bagramyan ; Ivan Isakov ; Sergei Khudyakov ; Konstantin Rokossovsky was made Marshal of the Soviet Union for his planning of Operation Bagration. ; Boris Shaposhnikov ; Semyon Timoshenko ; Fyodor Tolbukhin ; Aleksandr Vasilevsky served as a career Russian Army office who was awarded Marshall of the Soviet Union in 1943. ; Matvei Zakharov ;  Nikita Khrushchev 
Title: Our Northern Neighbour
Content:  In 1943, during the Second World War, three great powers come together at the Tehran Conference to decide the state of the Allied war effort. One of the three powers that has emerged as a key player is the Union of Soviet Socialist Republics, led by Joseph Stalin. The effectiveness of their Allied cooperation depends heavily on the United States and the United Kingdom having an understanding of the nature and history of their other partner, the Soviet Union. In First World War, after the October Revolution of November 1917, Communist Party leader Vladimir Lenin overthrew the last Russian Tsar, Nicholas II. The Soviet Union was subsequently officially established in December 1922. After Lenin's death in 1924, Stalin emerged as the new leader. Throughout the 1920s and 1930s, with great sacrifices made by the working class and peasants, the Soviet 

Question: who was the leader of soviet union during wwii?
Answer: Joseph Stalin.