What were the events of the invasion of ussr?

The invasion of the USSR, known as Operation Barbarossa, began on June 22, 1941, when Nazi Germany launched a massive surprise attack against the Soviet Union. This operation marked a pivotal moment in World War II, as Germany aimed to conquer the Soviet territory and eliminate communism. The invasion initially achieved rapid advances, capturing vast areas and inflicting heavy losses on the Red Army. However, logistical challenges, fierce Soviet resistance, and the harsh winter ultimately stalled the German offensive, leading to significant defeats, particularly at the Battle of Stalingrad in 1942-1943.