On this day, Nazi Germany launched Operation Barbarossa, a massive surprise invasion of the Soviet Union. The attack opened the Eastern Front and immediately turned the war into a fight for survival for Soviet Russia. Early German advances created huge losses and forced rapid Soviet mobilization and emergency rule.
A week after the invasion, the Soviet leadership created the State Defense Committee (GKO) to centralize decision-making for defense, industry, and resources. This body helped concentrate power at the top and speed up wartime orders. It was part of the wider shift to a "total war" economy and governance.
German and Finnish forces cut Leningrad off by land, starting a long blockade. The city faced extreme hunger, bombardment, and cold, while civilians and factories struggled to survive with limited supplies. The siege became one of the war’s most severe civilian disasters and a major symbol of Soviet endurance.
German forces began their major push toward Moscow, aiming to seize the Soviet capital. Soviet defenses, new reserves, and worsening weather slowed the advance. The battle mattered because Moscow was a political center and a key transportation hub for the Soviet war effort.
Soviet forces launched a winter counteroffensive that pushed German units away from Moscow. The failure to take the capital ended Germany’s hopes of a quick victory in the east. It also showed that the Red Army could recover and mount large coordinated operations.
With the war going badly in the summer of 1942, Stalin issued Order No. 227 to strengthen discipline and stop unauthorized retreats. The order is widely associated with harsher enforcement measures, including penal units and blocking detachments. It reflected how desperate the Soviet situation had become as Germany advanced toward the Volga and the Caucasus.
German forces attacked Stalingrad, turning the city into a brutal fight for control of the Volga River corridor. Street-by-street combat and heavy bombing caused enormous military and civilian losses. The battle became a central test of whether the Soviet Union could stop and reverse Germany’s advance.
The Red Army launched Operation Uranus, striking weaker Axis-held flanks around Stalingrad rather than the city center. The offensive helped trap major German forces in a large encirclement. This shift from defense to major counterattack marked a turning point in Soviet operational confidence.
After months of fighting, remaining Axis forces in and around Stalingrad surrendered. The defeat destroyed a major German field army and weakened Germany’s ability to attack on the Eastern Front. For Soviet Russia, the victory became a powerful symbol of national resistance and sacrifice.
Germany’s summer 1943 attack on the Kursk salient failed against deep Soviet defenses. Soviet counterattacks followed, and the Red Army increasingly kept the initiative on the Eastern Front. Kursk mattered because it helped set the stage for sustained Soviet advances in 1944–1945.
Stalin met with Roosevelt and Churchill at Tehran to coordinate strategy against Germany. A key issue was opening a western “second front,” while the Soviet Union planned to continue major offensives in the east. The conference linked Soviet battlefield efforts to broader Allied planning for defeating Nazi Germany.
Soviet forces finally lifted the siege and pushed German troops away from Leningrad. The city had endured mass starvation, disease, and bombardment, with enormous civilian losses. Ending the siege improved Soviet strategic flexibility in the north and became a major morale and political milestone.
The Red Army launched Operation Bagration, a massive offensive that shattered German positions in Belarus and opened the way toward Poland and the Baltic region. It was timed alongside the Allied push in western Europe, increasing pressure on Germany from multiple directions. The operation showed the Red Army’s improved planning, deception, and logistics compared with 1941–1942.
Roosevelt, Churchill, and Stalin met at Yalta to plan the final defeat of Germany and the occupation and political future of Europe. The talks addressed Germany’s postwar administration and borders and influenced how power would be organized after the war. For Soviet Russia, Yalta reflected its growing leverage as the Red Army closed in on Germany.
Soviet forces fought their way into Berlin in the war’s final major European battle. The fall of the German capital signaled the collapse of Nazi state power and accelerated the end of fighting in Europe. For the USSR, Berlin’s capture was both a military conclusion to the eastern campaign and a major political triumph.
Germany’s unconditional surrender ended World War II in Europe. In the Soviet Union, the end of the fighting was marked as Victory Day (commonly celebrated on May 9 due to time differences and the final Berlin signing). The outcome confirmed Soviet Russia as a decisive military power, but it also left vast destruction and deep demographic losses across the USSR.
Soviet Russia during the Great Patriotic War (1941–1945)