Why was the soviet union unprepared for hitlers attack on their country in june 1941

Which conditions did austria demand of serbia after the assassination of archduke ferdinand? check all that apply. 1. swearing allegiance to the triple alliance 2. accepting responsibility for the assassination 3. turning over control of its military operations 4. surrendering half of its most fertile lands 5. suppressing anti-austrian groups and publications

Which statement best describes a contribution of the works of nicolas copernicus and galileo galilei?

How did people in the 14th century understand black death