Operation Bagration, large-scale Soviet offensive against Nazi Germany that occurred from June 23 to August 19, 1944, on the Eastern Front during World War II. It was launched in support of the Normandy Invasion.
By mid-1944, the Nazis’ military power was in irreversible decline, and Germany’s allies were increasingly unreliable. The Soviet Red Army intended to take advantage of this situation by inflicting a catastrophe on the Germans that matched the scale suffered by the Soviets in Operation Barbarossa.
Security was tight, and the Red Army assembled 166 divisions on the Belorussian front, completely surprising German forces, which expected an assault farther south. Attacking on a 450-mile (724 km) front, within five days the Red Army had killed and captured tens of thousands. They went on to Minsk, where, despite desperate German efforts, including laying 4,000 booby traps, another 100,000 soldiers were killed or captured, several thousand being paraded in humiliation through Moscow. This left the road open to Poland and Lithuania. Soviet troops were advancing up to 15 miles (24 km) a day and had entered and liberated all of Belorussia before the end of July.
As the Red Army advanced, it encountered grim evidence of the horrors of Nazi occupation. Mass graves of some of the one million murdered civilians were uncovered; crops and livestock had been destroyed, towns and villages razed, all of which served to infuriate the Soviet soldiers. By the end of the campaign, only the most fanatical Nazi or self-deluded German could fail to recognize that the war was lost. However, the losses on both sides during Operation Bagration were significant: an estimated 350,000 to 670,000 German soldiers were killed, wounded, or captured, and more than 750,000 Soviet soliders died or were wounded. And as the campaign ran out of momentum, a final tragedy occurred: the Warsaw Uprising.