Woodstock 1969 Lineup and Songlist. Economic Indicators - EconSources - Your one-stop portal for the best economic information on the web! The Vietnam War. Holocaust Timeline. World War II: Operation Barbarossa - Alan Taylor - In Focus. On June 22, 1941, Nazi Germany and its Axis allies began a massive invasion of the Soviet Union named Operation Barbarossa -- some 4.5 million troops launched a surprise attack deployed from German-controlled Poland, Finland, and Romania.
Hitler had long had his eye on Soviet resources. Although Germany had signed a non-aggression pact with the USSR in 1939, both sides remained suspicious of one another, and the agreement merely gave them more time to prepare for a probable war.